title: Enrollment and retention challenges in early-phase intervention development studies: the obesity-related behavioral intervention trials (ORBIT).
authors.affiliation: National Heart, Lung, and Blood Institute, National Institutes of Health, 6701 Rockledge Dr, Ste 10224, Bethesda, MD 20892, USA. boyingtonje@mail.nih.gov
authors.forename: Josephine E A
authors.initials: JE
authors.lastname: Boyington
authors.forename: Susan
authors.initials: S
authors.lastname: Czajkowski
mesh_terms: D001521:Behavior Therapy; D005260:Female; D015438:Health Behavior; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D008297:Male; D009316:National Institutes of Health (U.S.); D009765:Obesity / Q000517:prevention & control; D011315:Preventive Medicine / Q000379:methods; D012108:Research Personnel; D057170:Translational Research, Biomedical; D014481:United States