title: To P or not to P.
authors.affiliation: a Department of Biostatistics , UNC Gillings School of Global Public Health , Chapel Hill , NC , USA.
authors.forename: Shrikant I
authors.initials: SI
authors.lastname: Bangdiwala
mesh_terms: D006801:Humans; D011159:Population Surveillance; D011336:Probability; D014947:Wounds and Injuries / Q000517:prevention & control