title: Reply to Perez and Ball.
authors.affiliation: Yale University Prevention Research Center , Griffin Hospital, Derby, CT.
authors.forename: David L
authors.initials: DL
authors.lastname: Katz
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010290:Parents / Q000523:psychology*; D063766:Pediatric Obesity / Q000523:psychology*