Human genetics studies in areas of high natural radiation. I. Methodology.
D000022:Abortion, Spontaneous; D001938:Brazil; D000013:Congenital Abnormalities; D005260:Female; D005828:Genetics, Population; D006801:Humans; D007226:Infant Mortality; D008297:Male; D011247:Pregnancy; D011831:Radiation Genetics; D011832:Radiation Injuries / Q000175:diagnosis; D011874:Radiometry; D012744:Sex Ratio; D012959:Socioeconomic Factors