- Nabi Biopharmaceuticals 14 studies
- Nagasaki University 1 study
- Nagoya City University 1 study
- Nagoya University 9 studies
- Nambudripad's Allergy Research Foundation 6 studies
- Namsos Hospital 2 studies
- Nanchang University 1 study
- Nanfang Hospital 2 studies
- Nanjing Medical University 24 studies
- Nanjing Sike Pharmaceutical Co., Ltd. 2 studies
- Nanjing University of Traditional Chinese Medicine 1 study
- Nanjing University School of Medicine 10 studies
- NanoBio Corporation 2 studies
- Nanogen, Inc. 1 study
- NanoPass Technologies Ltd 3 studies
- Nanovibronix 2 studies
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- Napo Pharmaceuticals, Inc. 1 study
- Napp Pharmaceuticals Limited 2 studies
- Nara Medical University 3 studies
- Narayana Nethralaya 1 study
- Naryx Pharma 1 study
- Nastech Pharmaceutical Company, Inc. 3 studies
- Nathan Kline Institute for Psychiatric Research 10 studies
- NatImmune A/S 1 study
- National Advanced Driving Simulator 1 study
- National Aeronautics and Space Administration (NASA) 1 study
- National Ageing Research Institute, Australia 3 studies
- National Alliance for Research on Schizophrenia and Depression 63 studies
- National Alliance on Mental Illness New Hampshire 1 study
- National Bacteriological Laboratory 1 study
- National Bioethics Commission of Brazil 2 studies
- National Board of Health, Denmark 8 studies
- National Cancer Center, Japan 1 study
- National Cancer Center, Korea 43 studies
- National Cancer Centre, Singapore 11 studies
- National Cancer Institute (NCI) 6017 studies
- National Cancer Institute of Canada 188 studies
- National Cancer Institute, France 3 studies
- National Cancer Institute, Milan 1 study
- National Cancer Institute, Naples 21 studies
- National Cancer Research Network 3 studies
- National Cardiovascular Center, Japan 4 studies
- National Center for Complementary and Alternative Medicine (NCCAM) 356 studies
- National Center for Genome Resources 1 study
- National Center for Research Resources (NCRR) 332 studies
- National Center on Minority Health and Health Disparities (NCMHD) 9 studies
- National Centre of Excellence in Functional Foods, Australia 1 study
- National Cheng-Kung University Hospital 18 studies
- National College of Natural Medicine 1 study
- National Comprehensive Cancer Network 10 studies
- National Council of Science and Technology, Mexico 1 study
- National Defense Medical College, Japan 1 study
- National Development and Research Institutes, Inc. 6 studies
- National Eye Institute (NEI) 255 studies
- National Gene Vector Laboratory 2 studies
- National Guard Health Affairs 1 study
- National Healing Corporation 2 studies
- National Health and Medical Research Council, Australia 59 studies
- National Health Research Institutes, Taiwan 55 studies
- National Health Service, United Kingdom 1 study
- National Healthcare Group, Singapore 5 studies
- National Heart and Lung Institute 7 studies
- National Heart Foundation, Australia 1 study
- National Heart Institute, Mexico 3 studies
- National Heart, Lung, and Blood Institute (NHLBI) 1700 studies
- National Hospital of Sri Lanka 1 study
- National Human Genome Research Institute (NHGRI) 111 studies
- National Institute for Biomedical Imaging and Bioengineering (NIBIB) 3 studies
- National Institute for Control of Vaccine and Biologicals 1 study
- National Institute for Medical Research, Tanzania 5 studies
- National Institute for Occupational Safety and Health (NIOSH/CDC) 4 studies
- National Institute of Allergy and Infectious Diseases (NIAID) 1556 studies
- National Institute of Allergy and Infectious Diseases@@@University of Bamako 1 study
- National Institute of Allergy and Infectious Diseases@@@University of Washing... 1 study
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) 220 studies
- National Institute of Cancerología 7 studies
- National Institute of Child Health and Human Development (NICHD) 632 studies
- National Institute of Cholera and Enteric Diseases, India 7 studies
- National Institute of Dental and Craniofacial Research (NIDCR) 130 studies
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) 631 studies
- National Institute of Environmental Health Sciences (NIEHS) 145 studies
- National Institute of General Medical Sciences (NIGMS) 23 studies
- National Institute of Health, Peru 1 study
- National Institute of Hygiene and Epidemiology, Vietnam 3 studies
- National Institute of Mental Health (NIMH) 908 studies
- National Institute of Mental Health and Neuro Sciences, India 2 studies
- National Institute of Neurological Disorders and Stroke (NINDS) 588 studies
- National Institute of Neurology and Neurosurgery, Mexico 1 study
- National Institute of Nursing Research (NINR) 91 studies
- National Institute of Nutrition and Seafood Research, Norway 1 study
- National Institute on Aging (NIA) 223 studies
- National Institute on Alcohol Abuse and Alcoholism (NIAAA) 178 studies
- National Institute on Deafness and Other Communication Disorders (NIDCD) 56 studies
- National Institute on Drug Abuse (NIDA) 743 studies
- National Institute on Media and the Family 1 study
- National Institutes of Health (NIH) 540 studies
- National Institutes of Health Clinical Center (CC) 136 studies
- National Jewish Health 1 study
- National Jewish Medical and Research Center 11 studies
- National Kidney Foundation 5 studies
- National Library of Medicine (NLM) 5 studies
- National Malaria Control Programme, Madagascar 1 study
- National Marrow Donor Program 3 studies
- National Medical Research Council (NMRC), Singapore 14 studies
- National Multiple Sclerosis Society 14 studies
- National Naval Medical Center 5 studies
- National Nutrition and Food Technology Institute 1 study
- National Nutritional Health Program, France 1 study
- National Osteoporosis Foundation 1 study
- National Pediatric Myoclonus Center 1 study
- National Public Health Institute KTL 13 studies
- National Rehabilitation Hospital 2 studies
- National Research and Development Centre for Welfare and Health 3 studies
- National Research Council of Thailand 3 studies
- National Research Council, Italy 5 studies
- National Research Institute of Tuberculosis and Lung Disease, Iran 2 studies
- National Research System-College of Family Physicians of Canada 2 studies
- National Science Council, Taiwan 79 studies
- National Sciences and Engineering Research Council, Canada 1 study
- National Surgical Adjuvant Breast and Bowel Project (NSABP) 51 studies
- National Taiwan University Hospital 491 studies
- National Trauma Research Institute 3 studies
- National University Hospital, Singapore 59 studies
- National University of Health Sciences 2 studies
- National University of Malaysia 1 study
- National University, Singapore 4 studies
- Nationwide Children's Hospital 14 studies
- Natividad Medical Center 1 study
- Natural History Museum, United Kingdom 1 study
- Natural Sciences and Engineering Research Council, Canada 2 studies
- NatureGen 1 study
- Naval Medical Research Center 8 studies
- Navigant Biotechnologies 2 studies
- Naviscan PET Systems 2 studies
- Nazilli State Hospital 1 study
- NCCR (National Center of Competence in Resaerch, Switzerland) 1 study
- NCHADS - Ministry of Health of Cambodia 3 studies
- NDO Surgical, Inc. 5 studies
- Negma Lerads 3 studies
- NeilMed Pharmaceuticals 1 study
- Nektar Therapeutics 5 studies
- NEMA Research, Inc. 6 studies
- Nemours Children's Clinic 12 studies
- Neopharm 16 studies
- Neoprobe Corporation 1 study
- Neosil, Inc. 2 studies
- NeoStrata Company, Inc. 2 studies
- NeoTherapeutics 1 study
- Neotropix 1 study
- NeoVista 2 studies
- NephroGenex, Inc. 1 study
- Nereus Pharmaceuticals, Inc. 6 studies
- Nestle Clinical Nutrition 7 studies
- Nestle Nutrition USA 1 study
- Nestle Research Center 6 studies
- Nestlé Nutrition Corporate 1 study
- Netherlands Heart Foundation 8 studies
- Netherlands Instititute for Health Services Research 1 study
- Netherlands Institute for Innovative Ocular Surgery 2 studies
- Netherlands Organisation for Scientific Research 3 studies
- Netherlands Society for Interventional Radiology 1 study
- Netherlands: Ministry of Health, Welfare and Sports 11 studies
- Neuralieve 1 study
- Neurex 1 study
- Neurim Pharmaceuticals Ltd. 3 studies
- Neuro Diagnostic Devices 1 study
- Neuro Resource Group 1 study
- Neuro-Hitech 1 study
- Neuro-Oncology Working Group of the German Cancer Society 1 study
- Neurobiological Technologies 5 studies
- Neurocare 1 study
- Neurocom 1 study
- Neurocrine Biosciences 8 studies
- Neurogen Corporation 3 studies
- NeurogesX 14 studies
- Neurognostics 3 studies
- Neurologic AIDS Research Consortium (NARC) 6 studies
- Neurological Research Center 1 study
- Neurologix, Inc. 2 studies
- Neurology, Tokyo Women's Medical University, School of Medicine 1 study
- Neuromed Pharmaceuticals 2 studies
- NeuroModulation Technique Research Institute 1 study
- Neuromonics, Inc. 1 study
- Neuronetics 2 studies
- Neuronetrix, Inc. 1 study
- Neuronyx 1 study
- NeuroPace 4 studies
- Neuropharm 3 studies
- Neuropsychiatric Research Institute, Fargo, North Dakota 2 studies
- NeuroScience, Inc., Osceola, WI. 1 study
- NeuroSearch A/S 7 studies
- NeuroSurvival Technologies Ltd. 1 study
- Neurotech Pharmaceuticals 3 studies
- NeuTec Pharma 3 studies
- Nevada Cancer Institute 2 studies
- New England Research Institutes 2 studies
- New England Retina Associates 2 studies
- New Health Sciences, Inc. 1 study
- New Hope Medical Center 1 study
- New Lexington Clinic 2 studies
- New Mexico VA Healthcare System 3 studies
- New River Pharmaceuticals 6 studies
- New York Blood Center 3 studies
- New York City Fire Department 1 study
- New York Downtown Hospital 3 studies
- New York MDRU 9 studies
- New York Medical College 2 studies
- New York Methodist Hospital 5 studies
- New York Neurosurgery & Neuroscience Associates, PLLC 1 study
- New York Presbyterian Hospital 18 studies
- New York Prostate Institute 1 study
- New York State Psychiatric Institute 63 studies
- New York University School of Medicine 100 studies
- Newark Beth Israel Medical Center 1 study
- NewBiotics 1 study
- Newcastle Primary Care Trust 2 studies
- Newcastle-upon-Tyne Hospitals NHS Trust 4 studies
- NewLink Genetics Corporation 8 studies
- Newport Pharmaceuticals International 6 studies
- Newron Pharmaceuticals S.p.A. 3 studies
- Newton-Wellesley Hospital 4 studies
- NexBio, Inc 2 studies
- NexMed, Inc. 1 study
- Nexstar Pharmaceuticals 2 studies
- Neys-van Hoogstraten Foundation, The Netherlands 1 study
- NHS Blood and Transplant 1 study
- NHS Grampian 3 studies
- NHS Greater Clyde and Glasgow 8 studies
- NHS Greater Glasgow and Clyde 12 studies
- NHS Greater Glasgow Yorkhill Division 2 studies
- NHS Health Technology Assessment Programme 2 studies
- NHS Lothian 3 studies
- NHS Tayside 4 studies
- NicOx 7 studies
- NicOx Inc. 1 study
- Niguarda Hospital 8 studies
- Nihon Pharmaceutical Co., Ltd 2 studies
- Nihon Univerity 2 studies
- Nij Smellinghe Hosptial 1 study
- Nile Therapeutics 3 studies
- NiliMedix 1 study
- Nilratan Sircar Medical College 3 studies
- Nippon Kayaku Co.,Ltd. 4 studies
- Nissan Chemical Industries 1 study
- Nitec Pharma AG 2 studies
- Niti Medical Technologies Ltd. 1 study
- Nitric BioTherapeutics, Inc 2 studies
- Nitromed 1 study
- NITROX, LLC 1 study
- NMT Medical 2 studies
- Nobel Biocare 3 studies
- Nobel Pharmaceuticals 1 study
- Nobelpharma 4 studies
- NOCwatch International 1 study
- None 24 studies
- Noninvasive Medical Technologies, Inc. 1 study
- NoNO Inc. 1 study
- Nordfjord Psychiatric Centre 2 studies
- Nordic Bioscience A/S 5 studies
- Nordic Institute of Chiropractic and Clinical Biomechanics 1 study
- Nordic Lymphoma Group 5 studies
- Nordic Myeloma Study Group 5 studies
- Nordic Society for Gynaecologic Oncology 3 studies
- Nordic Society for Pediatric Hematology and Oncology 1 study
- Nordic Urothelial Cancer Group 1 study
- Nordica Fertility Clinic 1 study
- NORDynamIC Study Group 1 study
- Noreen Clarke, Professor of Public Health, Michigan University 1 study
- Norgine 10 studies
- Norpharma A/S 1 study
- Norris Comprehensive Cancer Center 68 studies
- Norris Cotton Cancer Center 23 studies
- North American Biologicals Inc 1 study
- North American Brain Tumor Consortium 29 studies
- North Bristol NHS Trust 1 study
- North Bronx Healthcare Network 3 studies
- North Carelia Central Hospital 2 studies
- North Carolina Department of Health and Human Services 3 studies
- North Central Cancer Treatment Group 251 studies
- North District Hospital 1 study
- North East Wales NHS Trust 1 study
- North Eastern Germany Society of Gynaecologic Oncology 9 studies
- North Florida Foundation for Research and Education 1 study
- North Florida/South Georgia Veterans Health System 2 studies
- North Middlesex University Hospital 1 study
- North Shore Long Island Jewish Health System 26 studies
- North Shore Medical Center 3 studies
- North Shore University Hospital 3 studies
- North Suffolk Mental Health Association 15 studies
- North Texas Veterans' Healthcare System 4 studies
- North Toronto Primary Care Research Network 1 study
- North West London Hospitals NHS Trust 15 studies
- North West Wales NHS Trust 1 study
- Northeastern Ohio Universities College of Medicine 2 studies
- Northern California Melanoma Center 3 studies
- Northern Health and Social Care Trust 2 studies
- Northern Illinois University 1 study
- Northern Italy Leukemia Group 4 studies
- Northern Orthopaedic Division, Denmark 18 studies
- Northern State Medical University 2 studies
- Northern Therapeutics 1 study
- Northfield Laboratories 1 study
- Northgate Technologies 1 study
- Northport Veterans Affairs Medical Center 1 study
- Northside Clinic, Australia 1 study
- Northstar Neuroscience 3 studies
- Northumbria University 1 study
- Northwest and Alaska Center on Oral Health Disparities 1 study
- Northwest Biotherapeutics 4 studies
- Northwestern Health Sciences University 8 studies
- Northwestern Memorial Hospital 11 studies
- Northwestern Ophthalmic Institute S.C. 2 studies
- Northwestern University 106 studies
- Northwick Park Hospital, Harrow, UK 1 study
- Norton Community Hospital 1 study
- Norton Healthcare 1 study
- Norwegian Breast Cancer Group 1 study
- Norwegian Cancer Society 5 studies
- Norwegian Center for Violence and Traumatic Stress Studies 2 studies
- Norwegian Council of Universities’ Committee for Development Research and Edu... 1 study
- Norwegian Department of Health and Social Affairs 3 studies
- Norwegian Foundation for Health and Rehabilitation 19 studies
- Norwegian Fund for Postgraduate Training in Physiotherapy 7 studies
- Norwegian Institute of Public Health 6 studies
- Norwegian School of Sport Sciences 5 studies
- Norwegian University of Science and Technology 119 studies
- Notal Vision Ltd 8 studies
- Nottingham University Hospitals NHS Trust 3 studies
- Nova Scotia Cancer Centre 1 study
- Nova Southeastern University 7 studies
- NovaCardia 6 studies
- Novacea 11 studies
- Novagali Pharma 3 studies
- Novalar Pharmaceuticals, Inc. 4 studies
- Novartis 1366 studies
- Novartis Vaccines 84 studies
- NovaRx Corporation 1 study
- Novavax 1 study
- NovaVision, Inc. 2 studies
- Novelos Therapeutics 3 studies
- Noven Pharmaceuticals 3 studies
- Novexel Inc 2 studies
- NovImmune SA 1 study
- Novo Nordisk 266 studies
- Novocell 1 study
- NovoCure Ltd. 1 study
- Novogen 1 study
- Novum 1 study
- Novum Pharmaceutical Research Services 2 studies
- NPS Pharmaceuticals 10 studies
- NS Pharma, Inc. 1 study
- Nu-Magnetics Inc. 1 study
- Nucryst Pharmaceuticals 1 study
- Nuffield Orthopaedic Centre NHS Trust 1 study
- NuMedics, Inc. 1 study
- NuPathe Inc. 4 studies
- NuRx Pharmaceuticals, Inc. 1 study
- Nutricia North America 1 study
- Nutricia UK Ltd 1 study
- Nutrisystem, Inc. 1 study
- Nutrition 21, Inc. 2 studies
- NuVasive 2 studies
- Nuvelo 9 studies
- Nuvo Research Inc. 1 study
- Nventa Biopharmaceuticals Corporation 2 studies
- NxStage Medical 3 studies
- Nycomed 33 studies
- Nykøbing Falster County Hospital 1 study
- Núcleo de Estudos em Esportes e Ortopedia, Brazil 1 study
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