title: Pre-reproductive mortality and family structure: Sanday, Orkney Islands 1855-1974.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001721:Birth Intervals; D001722:Birth Order; D002648:Child; D002675:Child, Preschool; D005190:Family; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008137:Longitudinal Studies; D008297:Male; D008423:Maternal Age; D009026:Mortality; D010331:Paternal Age; D012606:Scotland; D012737:Sex Factors