L'Oreal   4 studies
L.A.L Clinica Pesquisa e Desenvolvimento Ltda.   5 studies
La Asociación Pro Bienestar de la Familia de Guatemala (APROFAM)   1 study
La Fundacion Favaloro para la Investigacion y la Docencia Medica   1 study
La Jolla Pharmaceutical Company   3 studies
La Trobe University   1 study
Lab Discoveries Ltd.   2 studies
Lab. for Orthopaedic Biomechanics, University of Basel   1 study
Labbafinejhad Hospital   1 study
Labcoat, Ltd.   3 studies
LabNoord   1 study
Labopharm Inc.   2 studies
Laboratoire français de Fractionnement et de Biotechnologies   3 studies
Laboratoire Régional de Nutrition Humaine   1 study
Laboratoires Arkopharma   1 study
Laboratoires CARILENE   2 studies
Laboratoires Genévrier   2 studies
Laboratoires Mayoly Spindler   1 study
Laboratoires Takeda   3 studies
Laboratoires Thea   9 studies
Laboratoires URGO   1 study
Laboratorio Clínico Congregación Mariana   1 study
Laboratorios Almirall, S.A.   5 studies
Laboratorios de Biologicos y Reactivos de México, S.A. de C.V.   1 study
Laboratorios Laproff S.A.   1 study
Laboratorios Leti, S.L.   5 studies
Laboratory Corporation of America   1 study
Lady Reading Hospital, Pakistan   1 study
Laerdal Medical   13 studies
Lagos State University   1 study
Lahey Clinic   28 studies
Laikon General District Hospital, Athens   1 study
Lakehead University   1 study
Lakeridge Health Corporation   1 study
Lance Armstrong Foundation   10 studies
Landon Pediatric Foundation   1 study
Landspitali University Hospital   1 study
Landsteiner Institut   2 studies
Lankenau Institute for Medical Research   1 study
Lantheus Medical Imaging   14 studies
Lantibio   1 study
LanZhou University   1 study
Larada Sciences, Inc.   3 studies
Larissa University Hospital   3 studies
Laser Microsurgery Centre, Poland   1 study
Laser Surgery Care   1 study
Laserklinik Karlsruhe   1 study
Latin American Center for Perinatology   1 study
Latin American Cooperative Onco-Haematology Group - Peru   1 study
Latin-American Collaborative Study of Congenital Malformations (ECLAMC)   1 study
LaTrobe University, Victoria, Australia.   1 study
Laval University   41 studies
Lavi Cardiatec   1 study
Lawrence Livermore National Laboratory at University of California   1 study
Lawson Health Research Institute   93 studies
Lawson Wilkins Pediatric Endocrine Society   1 study
LDR Spine USA   1 study
Le Bonheur Children's Medical Center   1 study
LE REGIME LOCAL D’ASSURANCE MALADIE EN ALSACE-MOSELLE   1 study
Leach Chiropractic Clinic   1 study
Leap of Faith Technologies   1 study
Lederle Laboratories   7 studies
Lederle-Praxis Biologicals   2 studies
Lee's Pharmaceutical Limited   1 study
Leeds Cancer Centre at St. James's University Hospital   5 studies
Legacy Biomechanics Laboratory   1 study
Legacy Health System   8 studies
Lehigh Center for Clinical Research   1 study
Lehigh University   1 study
Lehigh Valley Hospital   12 studies
Leiden University Medical Center   31 studies
Leiden University Medical Centre, DEPT of Parasitology, Leiden Holland   3 studies
Leids University Medical Centre   4 studies
Leiner Health Products   1 study
LeMaitre Vascular   2 studies
Lenox Hill Hospital   1 study
LEO Pharma   33 studies
Leo W. Jenkins Cancer Center   4 studies
Leortec Medical Systems Ltd   1 study
Lescuyer Laboratory   1 study
Lester E. Cox Medical Centers   1 study
Leucemies Aigues et Lymphomes de l'Adulte   1 study
Leukemia Research Fund   3 studies
Lev Pharmaceuticals, Inc.   4 studies
Lev-Hasharon Mental Healtlh Center   5 studies
Levitronix   1 study
Lexicon Pharmaceuticals   2 studies
Lexicor Medical Technology, LLC   1 study
Lexigen Pharmaceuticals   1 study
Lexington VA Medical Center   1 study
LG Life Sciences   6 studies
Li Ka Shing Foundation   1 study
Li Shin Hospital   1 study
Lianyungang Kanion Group, Ltd.   1 study
Liaoyang Central Hospital   1 study
Life Measurement Inc.   2 studies
Life Recovery Systems   4 studies
LifeBridge Health   2 studies
LifeCell   6 studies
LifeCycle Pharma A/S   8 studies
Lifelink Healthcare Institute   1 study
LifeMark Health Management Inc.   1 study
LifeMark Health Research Group   1 study
LifeNet Health   2 studies
LifeScan   9 studies
Lifespan   1 study
LifeTime Pharmaceuticals   3 studies
Lifeway Foods, Inc.   1 study
Ligand Pharmaceuticals   15 studies
Light Sciences Oncology   5 studies
LightLab Imaging   1 study
LigoCyte Pharmaceuticals, Inc.   1 study
Ligue Pulmonaire Genevoise   5 studies
Linde AG   1 study
Link America, Inc.   3 studies
Linkoeping University   1 study
Lipha Pharmaceuticals   1 study
Lipomed   3 studies
Liposome   1 study
Litron Laboratories   1 study
Liverpool John Moores University   1 study
Liverpool School of Tropical Medicine   6 studies
Loblaw Companies Limited   1 study
Locus for Homocysteine and Related Vitamins, University of Bergen, Norway   1 study
Loewenstein Hospital   1 study
Logan College of Chiropractic   42 studies
Logical Therapeutics   1 study
Loma Linda University   15 studies
Lombard Medical   3 studies
Lombardi Cancer Research Center   17 studies
London Health Sciences Centre   13 studies
London Intercommunity Health Centre (LIHC)   1 study
London Lung Cancer Group   2 studies
London Regional Cancer Program, Canada   1 study
London School of Hygiene and Tropical Medicine   53 studies
London South Bank University   1 study
Long Island Jewish Medical Center   5 studies
Long Island Vitreoretinal Consultants   1 study
Long Neck Medical Enterprises   1 study
Loreal USA   2 studies
Lorillard Tobacco Company   1 study
Lorus Therapeutics   3 studies
Los Angeles Biomedical Research Institute   13 studies
Lotung Poh-Ai Hospital   5 studies
Lotus Bio Inc.   1 study
Lotus Pharmaceutical   2 studies
Loughborough University   1 study
Louis Pasteur University, Strasbourg   4 studies
Louis Stokes VA Medical Center   2 studies
Louisiana State University   15 studies
Louisiana State University - Shreveport   8 studies
Lovisenberg Diakonale Hospital   3 studies
Lowcountry Infectious Diseases   1 study
Lowell General Hospital   6 studies
Lower Saxony Center for Nephrology   1 study
Loyola University   17 studies
Lpath, Inc.   2 studies
LTB4 Sweden AB   1 study
Lucid, Inc.   1 study
Lucille P. Markey Cancer Center at University of Kentucky   4 studies
Ludwig Boltzmann Gesellschaft   2 studies
Ludwig Boltzmann Institute for COPD Research   1 study
Ludwig Institute for Cancer Research   28 studies
Ludwig-Boltzmann Institut fuer Rheumatologie, Balneologie und Rehabilitation   1 study
Ludwig-Maximilians - University of Munich   57 studies
Luitpold Pharmaceuticals   25 studies
Lumen Biomedical   6 studies
Lumen Therapeutics   1 study
Lumenis Ltd.   3 studies
LumeRx   1 study
Luna Innovations   1 study
Lund University Hospital   23 studies
Lundbeck Israel   3 studies
Lung Cancer Group Cologne   1 study
Lung Clinic Hemer   2 studies
Lung Rx   4 studies
Lutheran General Hospital   2 studies
Lutheran University of Brazil   1 study
Lux Biosciences, Inc.   5 studies
LXR Biotechnology   1 study
LyphoMed   2 studies
Lübeck University Clinic   1 study