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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: 3993 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: 798 studies have locations outside the USA.

Note: 153 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
	24
	514
	257
	494
	1175
	466
	294
	230
	789
	488
	218
	370
	109
	849
	494
	311
	366
	398
	745
	1603
	118
	630
	540
	562
	220
	117
	690
	173
	335
	221
	480
	248
	236
	1120
	857
	380
	396
	878
	256
	391
	172
	521
	1055
	277
	443
	197
	556
	429
	191
	8
	413
Click on a region to display studies with locations in that region.
Country or World Region	Number of Studies
	3993
	337
	24
	213
	438
	102
	40
	26
	70
	13
	197

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