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Search results for ( "Child" OR "Adult" OR "Senior" ) [AGE-GROUP] are shown below.

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Click on a U.S. state to display studies with locations in that state.
Summary: 9759 studies have locations in 50 states and Washington D.C.

On the world map, click on a region to display studies with locations in that region.
Summary: 2039 studies have locations outside the USA.

Note: 1481 studies did not have location data.

Click on a U.S. state to display studies with locations in that state.
U.S. State	Number of Studies
	72
	1313
	551
	1175
	3277
	1301
	765
	456
	2110
	1279
	554
	923
	208
	2381
	1210
	726
	789
	1117
	1974
	3450
	302
	1541
	1380
	1480
	499
	323
	1853
	426
	843
	457
	1325
	552
	557
	3215
	2159
	825
	931
	2282
	598
	1089
	372
	1363
	2594
	631
	1100
	469
	1541
	1016
	335
	14
	1206
Click on a region to display studies with locations in that region.
Country or World Region	Number of Studies
	9759
	872
	59
	574
	1009
	193
	115
	56
	151
	17
	347

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