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Subject
- 305 Prospective Studies
- 291 Young Adult
- 262 Risk Factors
- 261 Retrospective Studies
- 252 Follow-Up Studies
- 204 Time Factors
- 185 Cohort Studies
- 181 Child
- 156 Animals
- 133 Double-Blind Method
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Date issued
- 261 2020 - 2024
- 1161 2010 - 2019
- 998 2000 - 2009
- 253 1990 - 1999
- 1 1988 - 1989