title: Physical activity in US Blacks: a systematic review and critical examination of self-report instruments.
authors.affiliation: Washington University School of Medicine, St, Louis, MO 63110 USA. wolink@wustl.edu.
authors.forename: Kathleen Y
authors.initials: KY
authors.lastname: Wolin
authors.forename: Casey
authors.initials: C
authors.lastname: Fagin
authors.forename: Nneka
authors.initials: N
authors.lastname: Ufere
authors.forename: Hallie
authors.initials: H
authors.lastname: Tuchman
authors.forename: Gary G
authors.initials: GG
authors.lastname: Bennett