Pacgen Biopharmaceuticals Corporation   1 study
Pachyonychia Congenita Project   1 study
Pacific Eye Associates   1 study
Pacific Fertility Center   1 study
Pacific Health Foundation   2 studies
Pacific Institute for Research and Evaluation   3 studies
Pacific Pharmaceuticals   2 studies
Pacira Pharmaceuticals, Inc   15 studies
Paijat-Hame Hospital District   2 studies
Pain and Analgesia Imaging and Neuroscience Group   1 study
Pain and Rehabilitation Medicine   1 study
Pain Management Center of Paducah   9 studies
Pain Therapeutics   3 studies
PAION Deutschland GmbH   3 studies
Palatin Technologies   2 studies
Palau Pharma S.A.   1 study
PalJect Ltd.   1 study
Palmer College of Chiropractic   2 studies
Palmetto Retina Center, LLC   1 study
Palo Alto Medical Foundation   5 studies
Palo Alto Medical Foundation Research Institute   1 study
Palomar Medical Technologies, Inc.   3 studies
Pamela Youde Nethersole Eastern Hospital   3 studies
PAMI Coordinating Center   1 study
Pamlab, L.L.C.   3 studies
Pamukkale University   3 studies
Pan American Health Organization   5 studies
Pan American Laboratories   1 study
Panacos Pharmaceuticals   1 study
Panam Clinic   1 study
Pancreatic Cancer Research Team   2 studies
PanGenetics UK Limited   1 study
Pantarhei Bioscience   3 studies
Pantarhei Devices BV   1 study
Papageorgiou General Hospital   5 studies
Papua New Guinea Institute of Medical Research   3 studies
Papworth Hospital   2 studies
Par Pharmaceutical, Inc.   28 studies
Paracelsus Medical University   1 study
Paracor Medical, Inc   2 studies
Paradigm Spine   1 study
Paragon Vision Sciences   1 study
ParaPro Pharmacuticals   6 studies
Parexel   8 studies
ParinGenix   1 study
Parion Sciences   1 study
Pariser, Robert J., M.D.   1 study
Park Nicollet Institute   19 studies
Parke-Davis   7 studies
Parker College of Chiropractic   1 study
Parker, William H., M.D.   1 study
Parkinson's Disease and Movement Disorder Center of Boca Raton   1 study
Parkinson's Disease and Movement Disorders Center   1 study
Parkinson's Disease Foundation   2 studies
Partners Research Associates   2 studies
Passport Health   1 study
Pasteur Merieux Connaught   2 studies
Pathfinder Therapeutics   1 study
Pathway Medical Technologies Inc.   1 study
Patient Safety Technologies, Inc.   1 study
Patton Medical Devices   1 study
Paul Beeson Faculty Scholars Program   2 studies
Paul G. Allen Family Foundation   3 studies
Paul Teschan Research Fund   1 study
Pavol Jozef Safarik University   1 study
PC-HEART   1 study
PDL BioPharma, Inc.   43 studies
PediaMed Pharmaceuticals   1 study
Pediatric AIDS Clinical Trials Group   1 study
Pediatric Brain Tumor Consortium   25 studies
Pediatric Cancer Foundation   1 study
Pediatric European Network for Treatment of AIDS   1 study
Pediatric Oncology Group   28 studies
Pediatric Partners of Ponte Vedra   1 study
Pediatric Pharmacology Research Units Network   1 study
Pediatrix Medical Group   4 studies
Pee Dee Coalition   1 study
Peking Union Medical College   4 studies
Peking Union Medical College Hospital   3 studies
Peking University   18 studies
Peking University First Hospital   6 studies
Peking University People's Hospital   3 studies
Penang Hospital, Malaysia   1 study
Peninsula Pharmaceuticals, Inc.   7 studies
Penn State University   78 studies
Pennine Acute Hospitals NHS Trust   1 study
Pennington Biomedical Research Center   21 studies
Pennsylvania College of Optometry   2 studies
Pennsylvania Department of Health   12 studies
PENTAX Europe GmbH   1 study
Penumbra Inc.   2 studies
Peplin   15 studies
Peptimmune   1 study
Peregrine Pharmaceuticals   10 studies
PerfAction Ltd.   1 study
Perinatal HIV Research Unit of the University of the Witswatersrand   1 study
PeriTec Biosciences Ltd.   1 study
Perrigo Company   18 studies
Persee Medica   1 study
Personal Improvement Computer Systems   1 study
Pervasis Therapeutics, Inc   1 study
Peschke Meditrade, GmbH   2 studies
Pet Care Trust   1 study
Peter J. Ruane, M.D., Inc.   1 study
Peter MacCallum Cancer Centre, Australia   17 studies
PETHEMA Foundation   35 studies
Pevion Biotech Ltd   3 studies
Pfizer   1441 studies
pfm Produkte fuer die Medizin AG   1 study
PGxHealth, LLC   2 studies
Phage Biotechnology   1 study
Pharma Nord   3 studies
Pharmaceutical Research Network   6 studies
Pharmacia   20 studies
Pharmacia and Upjohn   19 studies
Pharmacology Research Institute   4 studies
Pharmacopeia, Inc.   2 studies
Pharmacosmos A/S   2 studies
Pharmacyclics   20 studies
PharmaEngine   3 studies
Pharmalink AB   2 studies
PharmaLogic Development, Inc.   2 studies
Pharmalogica   1 study
PharmaMar   16 studies
PharmaNet   9 studies
PharmaNeuroBoost N.V.   1 study
Pharmanex   1 study
PharmaResearch   1 study
Pharmasset   6 studies
Pharmatech   2 studies
Pharmatech Oncology   5 studies
PharmAthene UK Limited   3 studies
PharmAthene, Inc.   1 study
Pharmaxis   17 studies
Pharmena North America   1 study
Pharmexa A/S   3 studies
Pharming Technologies B.V.   4 studies
Pharmos   3 studies
Phenomix   3 studies
Philadelphia Eye Associates   1 study
Philadelphia Veterans Affairs Medical Center   1 study
Philip Morris Products S.A.   2 studies
Philipps University Marburg Medical Center   23 studies
Philips Medical Systems   8 studies
Phoenix Children's Hospital   6 studies
PhotoCure   16 studies
photonamic GmbH & Co. KG   2 studies
PhotoThera, Inc   1 study
Photozig, Inc.   1 study
Phramongkutklao College of Medicine and Hospital   1 study
Physiatric Association of Spine, Sports and Occupational Rehabilitation   1 study
Physical Sciences Incorporated SBR2   1 study
Physical Therapy Clinical Research Network   3 studies
Physicians Pharmaceuticals, Inc.   2 studies
PhytoCeutica   4 studies
PhytoHealth Corporation   5 studies
Phytopharm   1 study
Phytotox SA   1 study
pico-tesla Magnetic Therapies, LLC   1 study
PICS, Inc.   1 study
Piedmont Healthcare   1 study
Pierre Fabre - Pharma GmbH   2 studies
Pierre Fabre Dermo Cosmetique   2 studies
Pierre Fabre Laboratories   4 studies
Pierre Fabre Medicament   7 studies
Pileje   1 study
Pine Street Foundation   1 study
Pinnacle Health System   1 study
Pinnacle Pain Medicine   1 study
Piramal Life Sciences Limited   4 studies
Pittsburgh Mind-Body Center at Carnegie Mellon University   2 studies
Pivotal S.L.   1 study
Piyavate Hospital   1 study
Plada Industriale Srl   2 studies
Planned Parenthood Federation of America   2 studies
Planned Parenthood League of Massachusetts   2 studies
Plasma Surgical Inc   1 study
PledPharma AB   1 study
Plethora Solutions Ltd   2 studies
Plexus Biomedical, Inc.   1 study
Plexxikon   1 study
PLx Pharma   1 study
Plymouth Hospitals NHS Trust   1 study
Pneuma Pharmaceuticals Incorporated   1 study
Pneumedicare Ltd.   1 study
Pneumoflex Systems, LLC   1 study
Pnn Medical A/S   2 studies
Point Biomedical   7 studies
Point Therapeutics   7 studies
Poissy-Saint Germain Hospital   2 studies
Poitiers University Hospital   11 studies
Policlinico Casilino ASL RMB   1 study
Policlinico Hospital   19 studies
Policlinique Médicale Universitaire   1 study
Polish Academy of Sciences   2 studies
Polish Colorectal Cancer Study Group   1 study
Polish Lymphoma Research Group   1 study
Polyheal Ltd.   1 study
POM Wonderful LLC   3 studies
Ponce Gastroenterology Research   1 study
Poniard Pharmaceuticals   9 studies
Pontificia Universidad Catolica de Chile   6 studies
Pontificia Universidad Javeriana   1 study
Pontificia Universidade Catolica de Sao Paulo   1 study
Population Council   12 studies
Population Health Research Institute   13 studies
Portland State University   2 studies
Portland VA Medical Center   4 studies
Portola Pharmaceuticals   4 studies
Posit Science Corporation   9 studies
Possis Medical   4 studies
Postgraduate Institute of Medical Education and Research   9 studies
Potentia Pharmaceuticals, Inc.   1 study
PowderMed   6 studies
Pozen   24 studies
Poznan University of Medical Sciences   4 studies
PPD   20 studies
PRA International   9 studies
Practitioners Engaged in Applied Research and Learning Network (PEARL)   1 study
PRAECIS Pharmaceuticals Inc.   5 studies
Prague Psychiatric Center   1 study
Prairie Education and Research Cooperative   3 studies
Prana Biotechnology Limited   1 study
Precision Therapeutics   3 studies
PrECOG, LLC.   1 study
PregLem SA   2 studies
PreMD   1 study
Premiere Oncology of Arizona   1 study
Presbyterian Church East Africa Kikuyu Hospital   1 study
Presbyterian Hospital of Dallas   5 studies
Prestwick Pharmaceuticals   1 study
PREtest Consult   1 study
Preventive Medicine Research Institute   1 study
PriCara, Unit of Ortho-McNeil, Inc.   42 studies
Primaeva Medical, Inc.   1 study
Primus Pharmaceuticals   5 studies
Prince of Songkla University   1 study
Prince of Wales Hospital, Shatin, Hong Kong   1 study
Prince of Wales Hospital, Sydney   1 study
Princess Alexandra Hospital, Brisbane, Australia   3 studies
Princess Margaret Hospital for Children   1 study
Princess Margaret Hospital, Canada   84 studies
Princess Margaret Hospital, Hong Kong   2 studies
Prism Pharmaceuticals   3 studies
Pro Top & Mediking Company Limited   12 studies
Pro-Change Behavior Systems   1 study
Pro-Pharmaceuticals   4 studies
Proacta, Incorporated   3 studies
Probiomics Ltd   1 study
Probity Medical Research   1 study
Procept   1 study
ProChon Biotech Ltd   1 study
Procris Pharmaceuticals   3 studies
Procter and Gamble   97 studies
ProEthic Pharmaceuticals   1 study
Profess Medical Consultancy   1 study
Professional Associations Clinic Bergmannsheil   1 study
Profil Institut für Stoffwechselforschung GmbH   1 study
Progen Pharmaceuticals   8 studies
Progenics Pharmaceuticals, Inc.   12 studies
Program for Appropriate Technology in Health   13 studies
Progressus   1 study
Prolacta Bioscience   2 studies
Prolexys Pharmaceuticals   1 study
Prologue Research International   14 studies
ProlX Pharmaceuticals   4 studies
Prometheus Laboratories   3 studies
Proneuron Biotechnologies   1 study
Pronova Biocare   6 studies
Pronova BioPharma ASA   1 study
Proportional Technologies, Inc.   1 study
ProRhythm, Inc.   1 study
Prospect Therapeutics, Inc.   3 studies
ProstaPlant Urology System Ltd.   1 study
Prostate Cancer Foundation of Chicago   1 study
Prostrakan Pharmaceuticals   4 studies
Protalex, Inc.   2 studies
Protalix   4 studies
Protein Sciences Corporation   11 studies
ProteoGenix, Inc.   2 studies
Proteolix   6 studies
Proteon Therapeutics   1 study
ProteoSys AG   1 study
Protez Pharmaceuticals, Inc.   1 study
ProThera, Inc.   1 study
Protherics   11 studies
Proton Radiation Oncology Group   1 study
Protox Therapeutics   3 studies
Provectus Pharmaceuticals   5 studies
Providence Cancer Center, Earle A. Chiles Research Institute   7 studies
Providence Health Care   7 studies
Providence Heart & Vascular Institute   1 study
Providence Multiple Sclerosis Center   1 study
Providence VA Medical Center   5 studies
Provident Clinical Research   5 studies
Province of Malaga Health Department   1 study
Provincial Health Services Authority   3 studies
Provinciale Hogeschool Limburg   1 study
PSI Foundation inc   3 studies
pSiMedica Limited   1 study
pSiVida Limited   2 studies
Psychiatric Hospital, Hillerod   1 study
Psychiatric Medicine Associates, L.L.C.   2 studies
Psychiatric University Hospital, Zurich   2 studies
Psychiatry Karolinska   1 study
Psykiatrisk Center Gentofte   1 study
PsyQ   1 study
PTC Therapeutics   10 studies
Public Health - Seattle and King County   2 studies
Public Health Service of Cataluña   2 studies
Public Health Service of Galicia   2 studies
Public Health Service of Madrid   3 studies
Public Health Solutions   4 studies
Puerta de Hierro University Hospital   1 study
Puget Sound Veterans Administration Health Care System   5 studies
Puleva Biotech   1 study
Pulmonary and Critical Care Medicine,University of California, Irvine   1 study
Pulmonary Critical Care Associates of Baltimore   1 study
Pulmonx, Inc.   2 studies
Pulsion Medical Systems   1 study
Purdue Frederick   1 study
Purdue Pharma LP   19 studies
Purdue University   18 studies
PuriCore, Inc.   1 study
Pusan National University Hospital   3 studies
PV-Nord   1 study