When two tribes go to war.
Cohen
P
P
D000883:Anthropology; D035841:Behavioral Research / Q000941:ethics*; D001938:Brazil / Q000208:ethnology; D005006:Ethnicity; D006801:Humans; D007107:Immune System; D007199:Indians, South American / Q000235:genetics; D008457:Measles / Q000453:epidemiology; D008458:Measles Vaccine / Q000009:adverse effects*; D033281:Nontherapeutic Human Experimentation / Q000941:ethics; D015871:Scientific Misconduct
D008458:Measles Vaccine