HIGH-RISK PREGNANCY.
D000293:Adolescent; D005260:Female; D006801:Humans; D007086:Illegitimacy; D008428:Maternal Mortality; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011295:Prenatal Care; D014481:United States
ADOLESCENCE; ILLEGITIMACY; MATERNAL MORTALITY; PREGNANCY; PRENATAL CARE; UNITED STATES