title: The authors reply.
authors.affiliation: Chronic Disease Research Group, Minneapolis Medical Research Foundation, Minneapolis, Minnesota, USA.
authors.forename: Jiannong
authors.initials: J
authors.lastname: Liu
authors.forename: Eric D
authors.initials: ED
authors.lastname: Weinhandl
authors.forename: Allan J
authors.initials: AJ
authors.lastname: Collins
authors.forename: Wendy L
authors.initials: WL
authors.lastname: St Peter
mesh_terms: D035843:Biomedical Research; D006801:Humans; D013223:Statistics as Topic