title: Incidence of cleft lips, palates rising.
abstract: About 1:700 live human births are affected by cleft lip and palate. Socio-economic factors--teenage pregnancies, pregnancies in women older than 35, increased consumption of teratogens during early months of pregnancy--have resulted in increased numbers of congenital malformations in the United States.
authors: Center for Craniofacial Molecular Biology, School of Dentistry, University of Southern California, Los Angeles 90033.
authors: H C
authors: HC
authors: Slavkin
mesh_terms: D000293:Adolescent; D002971:Cleft Lip / Q000196:embryology / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics; D002972:Cleft Palate / Q000196:embryology / Q000453:epidemiology* / Q000209:etiology* / Q000235:genetics; D005260:Female; D006801:Humans; D015994:Incidence; D008423:Maternal Age; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D018566:Pregnancy, High-Risk; D011295:Prenatal Care; D012307:Risk Factors; D013723:Teratogens
chemical_list: D013723:Teratogens