TY - JOUR T1 - Chicago ads featuring pregnant boys aim to shock teens, make them think JF - The Nation's Health JO - Nations Health SP - 10 LP - 10 VL - 43 IS - 7 AU - Charlotte Tucker Y1 - 2013/09/01 UR - http://www.thenationshealth.org/content/43/7/10.1.abstract N2 - At first glance, the boy looks like just another teenager. He has Justin Bieber hair and is lounging on a skateboard. ER -