1. Can Sibling Sex Ratios Be Used as a Valid Test for the Prenatal Androgen Hypothesis of Autism Spectrum Disorders? Cheslack-Postava, Keely; Susser, Ezra S.; Liu, Kayuet; Bearman, Peter Shawn 2015 Articles Autism spectrum disordersTestosteroneSex ratioPsychiatryEpidemiologyPublic health