title: Boys are entering puberty earlier, large study shows.
authors.forename: Janice Hopkins
authors.initials: JH
authors.lastname: Tanne
mesh_terms: D000367:Age Factors; D002648:Child; D006801:Humans; D008297:Male; D011629:Puberty, Precocious / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology