| | Other Issues: previous | next | latest | archiveCase Reports Interventricular septum hematoma during cineventriculography Andrea Grohmann, Thomas Elgeti, Stephan Eddicks, Fabian Knebel, Wolfgang Rutsch, Christoph Melzer, Gert Baumann, and Adrian C Borges Cardiovasc Ultrasound. 2008; 6: 4. Published online 2008 January 16. doi: 10.1186/1476-7120-6-4.PMCID: PMC2257924 Acute severe mitral regurgitation: consideration of papillary muscle architecture Andrew Czarnecki, Amar Thakrar, Tielan Fang, Matthew Lytwyn, Roien Ahmadie, Edward Pascoe, and Davinder S Jassal Cardiovasc Ultrasound. 2008; 6: 5. Published online 2008 January 18. doi: 10.1186/1476-7120-6-5.PMCID: PMC2248568 The role of Intravascular Ultrasound in the management of spontaneous coronary artery dissection Jayanth R Arnold, Nick EJ West, William J van Gaal, Theodoros D Karamitsos, and Adrian P Banning Cardiovasc Ultrasound. 2008; 6: 24. Published online 2008 May 31. doi: 10.1186/1476-7120-6-24.PMCID: PMC2429898 Hyperthyroidism as a reversible cause of right ventricular overload and congestive heart failure Raniero Di Giovambattista Cardiovasc Ultrasound. 2008; 6: 29. Published online 2008 June 12. doi: 10.1186/1476-7120-6-29.PMCID: PMC2440368 Transient left ventricular apical ballooning and exercise induced hypertension during treadmill exercise testing: is there a common hypersympathetic mechanism? Abhijeet Dhoble, Sahar S Abdelmoneim, Mathieu Bernier, Jae K Oh, and Sharon L Mulvagh Cardiovasc Ultrasound. 2008; 6: 37. Published online 2008 July 18. doi: 10.1186/1476-7120-6-37.PMCID: PMC2490681 Echocardiographic manifestation of hiatus hernia simulating a left atrial mass: Case report Konstantinos C Koskinas, Kostas Oikonomou, Eleni Karapatsoudi, and Pantelis Makridis Cardiovasc Ultrasound. 2008; 6: 46. Published online 2008 September 15. doi: 10.1186/1476-7120-6-46.PMCID: PMC2553061 Effort angina in a patient with advanced coronary artery disease. Role played by coronary angiography, Ivus and cardiac CT: case report Domenico M Zardi, Enrico M Zardi, Andrea Berni, Cristiana Nannini, Biagio Andrea Pace, Stefano Santucci, and Massimo Volpe Cardiovasc Ultrasound. 2008; 6: 48. Published online 2008 September 24. doi: 10.1186/1476-7120-6-48.PMCID: PMC2561006 Persistent left superior vena cava: a case report and review of literature Sandeep K Goyal, Sujeeth R Punnam, Gita Verma, and Frederick L Ruberg Cardiovasc Ultrasound. 2008; 6: 50. Published online 2008 October 10. doi: 10.1186/1476-7120-6-50.PMCID: PMC2576163 Primary lung tumour visualised by transthoracic echocardiography Magnus Dencker, Carin Cronberg, Sabine Damm, Sven Valind, and Monica Wadbo Cardiovasc Ultrasound. 2008; 6: 60. Published online 2008 December 16. doi: 10.1186/1476-7120-6-60.PMCID: PMC2614958 Hypothesis A simplified study of trans-mitral Doppler patterns George Thomas Cardiovasc Ultrasound. 2008; 6: 59. Published online 2008 November 28. doi: 10.1186/1476-7120-6-59.PMCID: PMC2607254 Reviews Usefulness and limitations of transthoracic echocardiography in heart transplantation recipients Sergio Mondillo, Massimo Maccherini, and Maurizio Galderisi Cardiovasc Ultrasound. 2008; 6: 2. Published online 2008 January 11. doi: 10.1186/1476-7120-6-2.PMCID: PMC2249582 Role of carotid duplex imaging in carotid screening programmes – an overview Muhammad A Saleem, Umar Sadat, Stewart R Walsh, Victoria E Young, Jonathan H Gillard, David G Cooper, and Michael E Gaunt Cardiovasc Ultrasound. 2008; 6: 34. Published online 2008 July 4. doi: 10.1186/1476-7120-6-34.PMCID: PMC2474588 Echocardiography practice, training and accreditation in the intensive care: document for the World Interactive Network Focused on Critical Ultrasound (WINFOCUS) Susanna Price, Gabriele Via, Erik Sloth, Fabio Guarracino, Raoul Breitkreutz, Emanuele Catena, Daniel Talmor, and World Interactive Network Focused On Critical UltraSound ECHO-ICU Group Cardiovasc Ultrasound. 2008; 6: 49. Published online 2008 October 6. doi: 10.1186/1476-7120-6-49.PMCID: PMC2586628 Tissue Doppler and strain imaging: anything left in the echo-lab? Rodolfo Citro, Eduardo Bossone, Bettina Kuersten, Giovanni Gregorio, and Alessandro Salustri Cardiovasc Ultrasound. 2008; 6: 54. Published online 2008 October 30. doi: 10.1186/1476-7120-6-54.PMCID: PMC2583989 Left atrioventricular remodeling in the assessment of the left ventricle diastolic function in patients with heart failure: a review of the currently studied echocardiographic variables Luiz C Danzmann, Luiz Carlos Bodanese, Ilmar Köhler, and Marco R Torres Cardiovasc Ultrasound. 2008; 6: 56. Published online 2008 November 16. doi: 10.1186/1476-7120-6-56.PMCID: PMC2615425 Technical Notes Transthoracic echocardiographic imaging of coronary arteries: tips, traps, and pitfalls Fausto Rigo, Bruno Murer, Giovanni Ossena, and Enrico Favaretto Cardiovasc Ultrasound. 2008; 6: 7. Published online 2008 February 1. doi: 10.1186/1476-7120-6-7.PMCID: PMC2268663 Flow-volume loops derived from three-dimensional echocardiography: a novel approach to the assessment of left ventricular hemodynamics Kambiz Shahgaldi, Emil Söderqvist, Petri Gudmundsson, Reidar Winter, Jacek Nowak, and Lars-Åke Brodin Cardiovasc Ultrasound. 2008; 6: 13. Published online 2008 April 4. doi: 10.1186/1476-7120-6-13.PMCID: PMC2322957 Research Fusion beat in patients with heart failure treated with left ventricular pacing: may ECG morphology relate to mechanical synchrony? A pilot study Lorella Gianfranchi, Katia Bettiol, Biagio Sassone, Roberto Verlato, Giorgio Corbucci, and Paolo Alboni Cardiovasc Ultrasound. 2008; 6: 1. Published online 2008 January 1. doi: 10.1186/1476-7120-6-1.PMCID: PMC2243262 Exercise-induced intra-ventricular gradients as a frequent potential cause of myocardial ischemia in cardiac syndrome X patients Carlos Cotrim, Ana G Almeida, and Manuel Carrageta Cardiovasc Ultrasound. 2008; 6: 3. Published online 2008 January 14. doi: 10.1186/1476-7120-6-3.PMCID: PMC2253520 Ultrasound settings significantly alter arterial lumen and wall thickness measurements Kathleen Potter, Christopher J Reed, Daniel J Green, Graeme J Hankey, and Leonard F Arnolda Cardiovasc Ultrasound. 2008; 6: 6. Published online 2008 January 22. doi: 10.1186/1476-7120-6-6.PMCID: PMC2254584 The cardiovascular profile of soccer referees: an echocardiographic study G Galanti, A Pizzi, M Lucarelli, L Stefani, M Gianassi, V Di Tante, L Toncelli, A Moretti, and F Del Furia Cardiovasc Ultrasound. 2008; 6: 8. Published online 2008 February 12. doi: 10.1186/1476-7120-6-8.PMCID: PMC2259300 Acute effects of caffeine and cigarette smoking on ventricular long-axis function in healthy subjects Elisa Giacomin, Elisabetta Palmerini, Piercarlo Ballo, Valerio Zacà, Giovanni Bova, and Sergio Mondillo Cardiovasc Ultrasound. 2008; 6: 9. Published online 2008 March 4. doi: 10.1186/1476-7120-6-9.PMCID: PMC2288591 B-mode ultrasound common carotid artery intima-media thickness and external diameter: cross-sectional and longitudinal associations with carotid atherosclerosis in a large population sample Marsha L Eigenbrodt, Zoran Bursac, Richard E Tracy, Jawahar L Mehta, Kathryn M Rose, and David J Couper Cardiovasc Ultrasound. 2008; 6: 10. Published online 2008 March 5. doi: 10.1186/1476-7120-6-10.PMCID: PMC2277382 Clinical utility of tissue Doppler imaging in patients with acute myocardial infarction complicated by cardiogenic shock Adnan K Hameed, Tirath Gosal, Tielan Fang, Roien Ahmadie, Matthew Lytwyn, Ivan Barac, Shelley Zieroth, Farrukh Hussain, and Davinder S Jassal Cardiovasc Ultrasound. 2008; 6: 11. Published online 2008 March 20. doi: 10.1186/1476-7120-6-11.PMCID: PMC2311277 Feasibility and diagnostic power of transthoracic coronary Doppler for coronary flow velocity reserve in patients referred for myocardial perfusion imaging Eva Maret, Jan Engvall, Eva Nylander, and Jan Ohlsson Cardiovasc Ultrasound. 2008; 6: 12. Published online 2008 March 29. doi: 10.1186/1476-7120-6-12.PMCID: PMC2292686 Supernormal functional reserve of apical segments in elite soccer players: an ultrasound speckle tracking handgrip stress study Laura Stefani, Loira Toncelli, Valentina Di Tante, Maria Concetta Roberta Vono, Brunello Cappelli, Gianni Pedrizzetti, and Giorgio Galanti Cardiovasc Ultrasound. 2008; 6: 14. Published online 2008 April 16. doi: 10.1186/1476-7120-6-14.PMCID: PMC2329600 Diastolic time – frequency relation in the stress echo lab: filling timing and flow at different heart rates Tonino Bombardini, Vincenzo Gemignani, Elisabetta Bianchini, Lucia Venneri, Christina Petersen, Emilio Pasanisi, Lorenza Pratali, David Alonso-Rodriguez, Mascia Pianelli, Francesco Faita, Massimo Giannoni, Giorgio Arpesella, and Eugenio Picano Cardiovasc Ultrasound. 2008; 6: 15. Published online 2008 April 21. doi: 10.1186/1476-7120-6-15.PMCID: PMC2365937 Chest sonography: a useful tool to differentiate acute cardiogenic pulmonary edema from acute respiratory distress syndrome Roberto Copetti, Gino Soldati, and Paolo Copetti Cardiovasc Ultrasound. 2008; 6: 16. Published online 2008 April 29. doi: 10.1186/1476-7120-6-16.PMCID: PMC2386861 Myocardial dysfunction in the periinfarct and remote regions following anterior infarction in rats quantified by 2D radial strain echocardiography: An observational cohort study Raymond Q Migrino, Xiaoguang Zhu, Mineshkumar Morker, Tejas Brahmbhatt, Megan Bright, and Ming Zhao Cardiovasc Ultrasound. 2008; 6: 17. Published online 2008 April 29. doi: 10.1186/1476-7120-6-17.PMCID: PMC2397379 Distribution of ultrasonic radiofrequency signal amplitude detects lipids in atherosclerotic plaque of coronary arteries: an ex-vivo study Hisao Hara, Taro Tsunoda, Naohiko Nemoto, Itaru Yokouchi, Masaya Yamamoto, Tsuyoshi Ono, Masao Moroi, Makoto Suzuki, Kaoru Sugi, and Masato Nakamura Cardiovasc Ultrasound. 2008; 6: 18. Published online 2008 May 9. doi: 10.1186/1476-7120-6-18.PMCID: PMC2391144 Evaluation of left ventricular outflow tract gradient during treadmill exercise and in recovery period in orthostatic position, in patients with hypertrophic cardiomyopathy Rita Miranda, Carlos Cotrim, Nuno Cardim, Sofia Almeida, Luís Lopes, Maria José Loureiro, Otília Simões, Pedro Cordeiro, Paula Fazendas, Isabel João, and Manuel Carrageta Cardiovasc Ultrasound. 2008; 6: 19. Published online 2008 May 15. doi: 10.1186/1476-7120-6-19.PMCID: PMC2413212 Prognostic implications of negative dobutamine stress echocardiography in African Americans compared to Caucasians Ajay V Srivastava, Karthik Ananthasubramaniam, Salil J Patel, Natesh Lingam, and Gordon Jacobsen Cardiovasc Ultrasound. 2008; 6: 20. Published online 2008 May 20. doi: 10.1186/1476-7120-6-20.PMCID: PMC2408564 Economic analysis including long-term risks and costs of alternative diagnostic strategies to evaluate patients with chest pain Gigliola Bedetti, Emilio Maria Pasanisi, Carmine Pizzi, Giuseppe Turchetti, and Cosimo Loré Cardiovasc Ultrasound. 2008; 6: 21. Published online 2008 May 29. doi: 10.1186/1476-7120-6-21.PMCID: PMC2435520 Three-dimensional mapping of mechanical activation patterns, contractile dyssynchrony and dyscoordination by two-dimensional strain echocardiography: Rationale and design of a novel software toolbox Bart WL De Boeck, Borut Kirn, Arco J Teske, Ralph W Hummeling, Pieter A Doevendans, Maarten J Cramer, and Frits W Prinzen Cardiovasc Ultrasound. 2008; 6: 22. Published online 2008 May 30. doi: 10.1186/1476-7120-6-22.PMCID: PMC2429897 The elusive link between high sensitivity C-reactive protein and carotid subclinical atherosclerosis in coronary artery bypass grafting candidates: A cross-sectional study Parvin Shakouri, Nariman Nezami, Mohammad Kazem Tarzamni, and Reza Javad Rashid Cardiovasc Ultrasound. 2008; 6: 23. Published online 2008 May 30. doi: 10.1186/1476-7120-6-23.PMCID: PMC2440732 Effects of cognac on coronary flow reserve and plasma antioxidant status in healthy young men Tuomas O Kiviniemi, Antti Saraste, Jyri O Toikka, Markku Saraste, Olli T Raitakari, Jussi P Pärkkä, Terho Lehtimäki, Jaakko J Hartiala, Jorma Viikari, and Juha W Koskenvuo Cardiovasc Ultrasound. 2008; 6: 25. Published online 2008 June 3. doi: 10.1186/1476-7120-6-25.PMCID: PMC2427009 Assessment of left ventricular volumes using simplified 3-D echocardiography and computed tomography – a phantom and clinical study Mattias Mårtensson, Reidar Winter, Kerstin Cederlund, Jonaz Ripsweden, Habib Mir-Akbari, Jacek Nowak, and Lars-Åke Brodin Cardiovasc Ultrasound. 2008; 6: 26. Published online 2008 June 4. doi: 10.1186/1476-7120-6-26.PMCID: PMC2426675 Myocardial involvement during the early course of type 2 diabetes mellitus: usefulness of Myocardial Performance Index Paolo Pattoneri, Fabiola B Sozzi, Elisabetta Catellani, Antonella Piazza, Roberto Iotti, Massimo Michelini, Matteo Goldoni, Alberico Borghetti, Maria Domenica Cappellini, and Valeria Manicardi Cardiovasc Ultrasound. 2008; 6: 27. Published online 2008 June 5. doi: 10.1186/1476-7120-6-27.PMCID: PMC2430540 Circumferential 2D-strain imaging for the prediction of long term response to cardiac resynchronization therapy Fabian Knebel, Sebastian Schattke, Hansjürgen Bondke, Stephan Eddicks, Andrea Grohmann, Gert Baumann, and Adrian C Borges Cardiovasc Ultrasound. 2008; 6: 28. Published online 2008 June 6. doi: 10.1186/1476-7120-6-28.PMCID: PMC2435102 The diagnostic accuracy of pharmacological stress echocardiography for the assessment of coronary artery disease: a meta-analysis Eugenio Picano, Sabrina Molinaro, and Emilio Pasanisi Cardiovasc Ultrasound. 2008; 6: 30. Published online 2008 June 19. doi: 10.1186/1476-7120-6-30.PMCID: PMC2443362 Head to head comparison of 2D vs real time 3D dipyridamole stress echocardiography Silvia Varnero, Patricia Santagata, Lorenza Pratali, Massimiliano Basso, Alfredo Gandolfo, and Paolo Bellotti Cardiovasc Ultrasound. 2008; 6: 31. Published online 2008 June 20. doi: 10.1186/1476-7120-6-31.PMCID: PMC2474587 Sequentially based analysis versus image based analysis of Intima Media Thickness in common carotid arteries studies - Do major IMT studies underestimate the true relations for cardio- and cerebrovascular risk? M Sandrock, J Hansel, J Schulze, D Schmitz, A Niess, H Burkhardt, and A Schmidt-Trucksaess Cardiovasc Ultrasound. 2008; 6: 32. Published online 2008 June 20. doi: 10.1186/1476-7120-6-32.PMCID: PMC2443112 Understanding atrioventricular septal defect: Anatomoechocardiographic correlation Nilda Espinola-Zavaleta, Luís Muñoz-Castellanos, Magdalena Kuri-Nivón, and Candace Keirns Cardiovasc Ultrasound. 2008; 6: 33. Published online 2008 June 24. doi: 10.1186/1476-7120-6-33.PMCID: PMC2453104 Atrial natriuretic peptide and three-dimensional echocardiography after transcatheter closure of atrial septal defect Jingdong Ding, Genshan Ma, Yaoyao Huang, Xiaoli Zhang, Biao Liu, and Fengxiang Lu Cardiovasc Ultrasound. 2008; 6: 35. Published online 2008 July 7. doi: 10.1186/1476-7120-6-35.PMCID: PMC2467405 Correlates of preclinical cardiovascular disease in Indigenous and Non-Indigenous Australians: a case control study Brian A Haluska, Lionel Chan, Leanne Jeffriess, A Andrew Shaw, Joanne Shaw, and Thomas H Marwick Cardiovasc Ultrasound. 2008; 6: 36. Published online 2008 July 16. doi: 10.1186/1476-7120-6-36.PMCID: PMC2500007 Three-dimensional transesophageal echocardiography of the atrial septal defects Francisco-Javier Roldán, Jesús Vargas-Barrón, Clara Vázquez-Antona, Luis Muñoz Castellanos, Julio Erdmenger-Orellana, Ángel Romero-Cárdenas, and Marco-Antonio Martínez-Ríos Cardiovasc Ultrasound. 2008; 6: 38. Published online 2008 July 18. doi: 10.1186/1476-7120-6-38.PMCID: PMC2526079 Cardiac incoordination induced by left bundle branch block: its relation with left ventricular systolic function in patients with and without cardiomyopathy Miguel Quintana, Samir Saha, Satish Govind, Lars Åke Brodin, Francesca del Furia, and Vicente Bertomeu Cardiovasc Ultrasound. 2008; 6: 39. Published online 2008 August 5. doi: 10.1186/1476-7120-6-39.PMCID: PMC2525630 Intraventricular dyssynchrony in light chain amyloidosis: a new mechanism of systolic dysfunction assessed by 3-dimensional echocardiography Raymond Q Migrino, Leanne Harmann, Timothy Woods, Megan Bright, Seth Truran, and Parameswaran Hari Cardiovasc Ultrasound. 2008; 6: 40. Published online 2008 August 7. doi: 10.1186/1476-7120-6-40.PMCID: PMC2525629 Arterial pressure changes monitoring with a new precordial noninvasive sensor Tonino Bombardini, Vincenzo Gemignani, Elisabetta Bianchini, Lucia Venneri, Christina Petersen, Emilio Pasanisi, Lorenza Pratali, Mascia Pianelli, Francesco Faita, Massimo Giannoni, Giorgio Arpesella, and Eugenio Picano Cardiovasc Ultrasound. 2008; 6: 41. Published online 2008 August 21. doi: 10.1186/1476-7120-6-41.PMCID: PMC2531180 Reproducibility of 3-dimensional ultrasound readings of volume of carotid atherosclerotic plaque Malte Ludwig, Tomasz Zielinski, Dieter Schremmer, and Klaus O Stumpe Cardiovasc Ultrasound. 2008; 6: 42. Published online 2008 August 26. doi: 10.1186/1476-7120-6-42.PMCID: PMC2531085 Endothelial function and urine albumin levels among asymptomatic Mexican-Americans and non-Hispanic whites Julius M Gardin, Zuhair Allebban, Nathan D Wong, Sharon K Sklar, Renee L Bess, M Anne Spence, and Harrihar A Pershadsingh Cardiovasc Ultrasound. 2008; 6: 43. Published online 2008 August 27. doi: 10.1186/1476-7120-6-43.PMCID: PMC2542998 Normalization of flow-mediated dilation to shear stress area under the curve eliminates the impact of variable hyperemic stimulus Jaume Padilla, Blair D Johnson, Sean C Newcomer, Daniel P Wilhite, Timothy D Mickleborough, Alyce D Fly, Kieren J Mather, and Janet P Wallace Cardiovasc Ultrasound. 2008; 6: 44. Published online 2008 September 4. doi: 10.1186/1476-7120-6-44.PMCID: PMC2542351 Myocardial tissue Doppler echocardiography and N-terminal B-type natriuretic peptide (NT-proBNP) in diastolic and systolic heart failure Fabian Knebel, Stephan Eddicks, Ingolf Schimke, Michael Bierbaum, Sebastian Schattke, Mark Beling, Vanessa Raab, Gert Baumann, and Adrian C Borges Cardiovasc Ultrasound. 2008; 6: 45. Published online 2008 September 8. doi: 10.1186/1476-7120-6-45.PMCID: PMC2542999 Correlation between Progetto Cuore risk score and early cardiovascular damage in never treated subjects Aldo Pende, Caterina Grondona, and Stefano Bertolini Cardiovasc Ultrasound. 2008; 6: 47. Published online 2008 September 22. doi: 10.1186/1476-7120-6-47.PMCID: PMC2556661 The usefulness of contrast during exercise echocardiography for the assessment of systolic pulmonary pressure Luis R Lopes, Maria J Loureiro, Rita Miranda, Sofia Almeida, Ana R Almeida, Ana Cordeiro, Carlos Cotrim, and Manuel Carrageta Cardiovasc Ultrasound. 2008; 6: 51. Published online 2008 October 13. doi: 10.1186/1476-7120-6-51.PMCID: PMC2570360 Appropriateness of carotid plaque and intima-media thickness assessment in routine clinical practice Liz Andréa Villela Baroncini, Aguinaldo de Oliveira, Enrique Antonio Vidal, Graciliano José França, Paulo Sérgio Dalla Bona Stahlke, Alexandre Alessi, and Dalton Bertolim Précoma Cardiovasc Ultrasound. 2008; 6: 52. Published online 2008 October 16. doi: 10.1186/1476-7120-6-52.PMCID: PMC2576162 Duplex scan in patients with clinical suspicion of deep venous thrombosis Aguinaldo de Oliveira, Graciliano J França, Enrique A Vidal, Paulo SDB Stalke, and Liz AV Baroncini Cardiovasc Ultrasound. 2008; 6: 53. Published online 2008 October 20. doi: 10.1186/1476-7120-6-53.PMCID: PMC2576164 Computer-assisted determination of left ventricular endocardial borders reduces variability in the echocardiographic assessment of ejection fraction Eva Maret, Lars Brudin, Lena Lindstrom, Eva Nylander, Jan L Ohlsson, and Jan E Engvall Cardiovasc Ultrasound. 2008; 6: 55. Published online 2008 November 11. doi: 10.1186/1476-7120-6-55.PMCID: PMC2596088 Implementation of seven echocardiographic parameters of myocardial asynchrony to improve the long-term response rate of cardiac resynchronization therapy (CRT) Fabian Knebel, Sebastian Schattke, Hansjürgen Bondke, Christoph Richter, Christoph Melzer, Henryk Dreger, Andrea Grohmann, Gert Baumann, and Adrian C Borges Cardiovasc Ultrasound. 2008; 6: 58. Published online 2008 November 25. doi: 10.1186/1476-7120-6-58.PMCID: PMC2613384 Endothelial dysfunction, carotid artery plaque burden, and conventional exercise-induced myocardial ischemia as predictors of coronary artery disease prognosis Bonpei Takase, Yoshihiro Matsushima, Akimi Uehata, Masayuki Ishihara, and Akira Kurita Cardiovasc Ultrasound. 2008; 6: 61. Published online 2008 December 16. doi: 10.1186/1476-7120-6-61.PMCID: PMC2621141 Impact of contractile reserve on acute response to cardiac resynchronization therapy Marie Moonen, Mario Senechal, Bernard Cosyns, Pierre Melon, Eric Nellessen, Luc Pierard, and Patrizio Lancellotti Cardiovasc Ultrasound. 2008; 6: 65. Published online 2008 December 31. doi: 10.1186/1476-7120-6-65.PMCID: PMC2615753 |