title: Validation of two-dimensional models for estimation of portion size in nutrition research.
authors.affiliation: Boston University School of Public Health, MA 02118.
authors.forename: B M
authors.initials: BM
authors.lastname: Posner
authors.forename: C
authors.initials: C
authors.lastname: Smigelski
authors.forename: A
authors.initials: A
authors.lastname: Duggal
authors.forename: J L
authors.initials: JL
authors.lastname: Morgan
authors.forename: J
authors.initials: J
authors.lastname: Cobb
authors.forename: L A
authors.initials: LA
authors.lastname: Cupples
mesh_terms: D015930:Diet Records; D004435:Eating; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D008962:Models, Theoretical; D015203:Reproducibility of Results; D013689:Telephone