Trace element levels and carcinoma of the nasopharynx in Kenya.
D005260:Female; D006801:Humans; D007630:Kenya; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000139:chemically induced / Q000453:epidemiology* / Q000209:etiology; D014131:Trace Elements / Q000032:analysis*; D003313:Zea mays / Q000032:analysis
D014131:Trace Elements