Perinatal mortality and the evolution of population in Mexico.
D003710:Demography; D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008800:Mexico; D011247:Pregnancy; D011248:Pregnancy Complications; D012959:Socioeconomic Factors