• Afghanistan   2 studies
• Albania   2 studies
• Algeria   8 studies
• American Samoa   2 studies
• Andorra   2 studies
• Angola   1 study
• Argentina   781 studies
• Armenia   1 study
• Australia   1986 studies
• Australia, Australian Capital Territory   63 studies
• Australia, New South Wales   840 studies
• Australia, Northern Territory   11 studies
• Australia, Queensland   550 studies
• Australia, South Australia   491 studies
• Australia, Tasmania   78 studies
• Australia, Victoria   917 studies
• Australia, Western Australia   528 studies
• Austria   1241 studies
• Bahamas   7 studies
• Bahrain   2 studies
• Bangladesh   53 studies
• Barbados   1 study
• Belarus   32 studies
• Belgium   1965 studies
• Belize   2 studies
• Benin   6 studies
• Bermuda   1 study
• Bolivia   9 studies
• Bosnia and Herzegovina   35 studies
• Botswana   18 studies
• Brazil   1146 studies
• Bulgaria   324 studies
• Burkina Faso   32 studies
• Cambodia   12 studies
• Cameroon   17 studies
• Canada   5394 studies
• Canada, Alberta   1582 studies
• Canada, British Columbia   1553 studies
• Canada, Manitoba   738 studies
• Canada, New Brunswick   340 studies
• Canada, Newfoundland and Labrador   424 studies
• Canada, Nova Scotia   847 studies
• Canada, Ontario   3581 studies
• Canada, Prince Edward Island   99 studies
• Canada, Quebec   2114 studies
• Canada, Saskatchewan   626 studies
• Central African Republic   4 studies
• Chile   415 studies
• China   975 studies
• Colombia   249 studies
• Congo   9 studies
• Congo, The Democratic Republic of the   3 studies
• Costa Rica   99 studies
• Croatia   246 studies
• Cuba   4 studies
• Cyprus   15 studies
• Czech Republic   945 studies
• Côte D'Ivoire   6 studies
• Denmark   1658 studies
• Dominican Republic   38 studies
• Ecuador   49 studies
• Egypt   111 studies
• El Salvador   8 studies
• Estonia   244 studies
• Ethiopia   11 studies
• Fiji   6 studies
• Finland   799 studies
• Former Yugoslavia   4 studies
• France   3705 studies
• Gabon   17 studies
• Gambia   25 studies
• Georgia   23 studies
• Germany   4371 studies
• Ghana   37 studies
• Greece   584 studies
• Guadeloupe   2 studies
• Guatemala   87 studies
• Guinea   3 studies
• Guinea-Bissau   26 studies
• Haiti   9 studies
• Honduras   14 studies
• Hong Kong   332 studies
• Hungary   826 studies
• Iceland   39 studies
• India   836 studies
• Indonesia   78 studies
• Iran, Islamic Republic of   151 studies
• Iraq   2 studies
• Ireland   344 studies
• Israel   1712 studies
• Italy   2474 studies
• Jamaica   10 studies
• Japan   1016 studies
• Jordan   13 studies
• Kazakhstan   8 studies
• Kenya   67 studies
• Korea, Democratic People's Republic of   2 studies
• Korea, Republic of   993 studies
• Kuwait   7 studies
• Latvia   209 studies
• Lebanon   60 studies
• Liberia   1 study
• Lithuania   250 studies
• Luxembourg   26 studies
• Macedonia, The Former Yugoslav Republic of   28 studies
• Madagascar   8 studies
• Malawi   40 studies
• Malaysia   227 studies
• Mali   42 studies
• Malta   12 studies
• Martinique   2 studies
• Mauritania   1 study
• Mauritius   2 studies
• Mexico   885 studies
• Moldova, Republic of   7 studies
• Monaco   1 study
• Montenegro   2 studies
• Morocco   27 studies
• Mozambique   21 studies
• Myanmar   1 study
• Nepal   11 studies
• Netherlands   2200 studies
• Netherlands Antilles   1 study
• New Zealand   453 studies
• Nicaragua   3 studies
• Niger   2 studies
• Nigeria   18 studies
• Northern Mariana Islands   1 study
• Norway   1010 studies
• Oman   1 study
• Pakistan   103 studies
• Panama   70 studies
• Papua New Guinea   4 studies
• Paraguay   5 studies
• Peru   348 studies
• Philippines   274 studies
• Poland   1370 studies
• Portugal   494 studies
• Puerto Rico   891 studies
• Qatar   8 studies
• Romania   528 studies
• Russian Federation   986 studies
• Rwanda   8 studies
• Réunion   2 studies
• Saudi Arabia   59 studies
• Senegal   16 studies
• Serbia   135 studies
• Serbia and Montenegro   62 studies
• Seychelles   1 study
• Sierra Leone   1 study
• Singapore   480 studies
• Slovakia   432 studies
• Slovenia   130 studies
• South Africa   859 studies
• Spain   2181 studies
• Sri Lanka   9 studies
• Sudan   5 studies
• Swaziland   1 study
• Sweden   1288 studies
• Switzerland   1443 studies
• Syrian Arab Republic   1 study
• Taiwan   1228 studies
• Tanzania   68 studies
• Thailand   461 studies
• Togo   1 study
• Trinidad and Tobago   4 studies
• Tunisia   57 studies
• Turkey   456 studies
• Uganda   82 studies
• Ukraine   377 studies
• United Arab Emirates   19 studies
• United Kingdom   3307 studies
• United States   37139 studies
• United States, Alabama   3431 studies
• United States, Alaska   223 studies
• United States, Arizona   3439 studies
• United States, Arkansas   1853 studies
• United States, California   10424 studies
• United States, Colorado   3555 studies
• United States, Connecticut   2636 studies
• United States, Delaware   877 studies
• United States, District of Columbia   2356 studies
• United States, Florida   6846 studies
• United States, Georgia   4357 studies
• United States, Hawaii   863 studies
• United States, Idaho   803 studies
• United States, Illinois   6149 studies
• United States, Indiana   3633 studies
• United States, Iowa   2023 studies
• United States, Kansas   2245 studies
• United States, Kentucky   2393 studies
• United States, Louisiana   2732 studies
• United States, Maine   767 studies
• United States, Maryland   7254 studies
• United States, Massachusetts   5982 studies
• United States, Michigan   4641 studies
• United States, Minnesota   3904 studies
• United States, Mississippi   1187 studies
• United States, Missouri   4476 studies
• United States, Montana   966 studies
• United States, Nebraska   2103 studies
• United States, Nevada   1511 studies
• United States, New Hampshire   916 studies
• United States, New Jersey   3975 studies
• United States, New Mexico   1284 studies
• United States, New York   9148 studies
• United States, North Carolina   5912 studies
• United States, North Dakota   897 studies
• United States, Ohio   6451 studies
• United States, Oklahoma   2306 studies
• United States, Oregon   2881 studies
• United States, Pennsylvania   7160 studies
• United States, Rhode Island   1455 studies
• United States, South Carolina   3169 studies
• United States, South Dakota   742 studies
• United States, Tennessee   4158 studies
• United States, Texas   8831 studies
• United States, Utah   2054 studies
• United States, Vermont   939 studies
• United States, Virginia   3592 studies
• United States, Washington   4225 studies
• United States, West Virginia   841 studies
• United States, Wisconsin   2920 studies
• United States, Wyoming   217 studies
• Uruguay   26 studies
• Uzbekistan   1 study
• Venezuela   68 studies
• Vietnam   46 studies
• Zambia   41 studies
• Zimbabwe   16 studies

Clinical Trials Authorship and Review

Clinical Trials content is provided directly by the U.S. National Institutes of Health via ClinicalTrials.gov and is not reviewed separately by ClinicalTrialsFeeds.org. Every page of specific clinical trials information contains a unique identifier which can be used to find further details directly from the National Institutes of Health.