title: Annual summary of vital statistics--1973.
mesh_terms: D000293:Adolescent; D001208:Asia; D001315:Australia; D001723:Birth Rate; D002170:Canada; D004243:Divorce; D005060:Europe; D005260:Female; D005298:Fertility; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D008393:Marriage; D009026:Mortality; D009520:New Zealand; D011247:Pregnancy; D014481:United States; D014798:Vital Statistics