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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: 4034 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: 821 studies have locations outside the USA.

Note: 167 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
	22
	530
	260
	517
	1198
	482
	309
	234
	810
	512
	227
	374
	108
	854
	509
	319
	373
	419
	764
	1625
	116
	641
	544
	579
	232
	121
	707
	179
	348
	225
	504
	259
	239
	1151
	873
	390
	407
	915
	260
	405
	178
	538
	1078
	286
	458
	196
	567
	445
	190
	8
	419
Click on a region to display studies with locations in that region.
Country or World Region	Number of Studies
	4034
	350
	26
	223
	446
	108
	42
	30
	71
	14
	202

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