[1] Univ Pittsburgh, Dept Human Genet, Pittsburgh, PA USA
[2] Univ Pittsburgh, Sch Dent Med, Cleft Palate Craniofacial Ctr, Pittsburgh, PA USA
[3] Univ Pittsburgh, Ctr Educ & Drug Abuse Res, Pittsburgh, PA USA
[4] Univ Pittsburgh, Sch Dent Med, Dept Oral & Maxillofacial Surg, Pittsburgh, PA USA
[5] Univ Pittsburgh, Dept Psychiat, Pittsburgh, PA USA