Subjects: HEALTH surveys; BODY weight; MEDICAL researchUNITED States
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Subjects: COVID-19 pandemic; HEALTH surveys; PUBLIC healthUNITED States
Subjects: MENTAL health; HEALTH surveys; PUBLIC healthUNITED States
Subjects: *HEALTH surveys; *EPIDEMIOLOGICAL research; *RESEARCH methodologyUNITED States
Subjects: *HEALTH surveys; *HEALTH of older people; *NUTRITION & oral healthUNITED States
Subjects: *HEALTH surveys; *SMOKING prevention; *PUBLIC healthUNITED States
Subjects: *HEALTH surveys; *DISCLOSURE; *HEALTH educationUNITED StatesCENTERS for Disease Control & Prevention (U.S.)
Subjects: CHILDREN'S health; HEALTH surveys; FEDERAL aid to medical researchUNITED States
Subjects: CENTERS for Disease Control & Prevention (U.S.); HEALTH surveys; HIV-positive personsUNITED States
Subjects: HEALTH & Nutrition Examination Survey; HEALTH surveys; NUTRITION surveysUNITED States