Young mothers.
D000013:Congenital Abnormalities / Q000401:mortality; D003645:Death, Sudden; D005260:Female; D005313:Fetal Death; D005865:Gestational Age; D006266:Health Education; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D008423:Maternal Age; D011247:Pregnancy; D012959:Socioeconomic Factors; D006113:United Kingdom