Purulent otitis media: differences between populations in different environments.
D000328:Adult; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D000351:Africa, Eastern; D000413:Alaska; D001315:Australia; D001741:Black or African American; D044383:Black People; D001942:Breast Feeding; D002170:Canada; D002654:Child Care; D002664:Child Nutritional Physiological Phenomena; D004032:Diet; D004777:Environment; D006798:Housing; D007198:Indians, North American; D004930:Inuit; D008019:Life Style; D009520:New Zealand; D010033:Otitis Media / Q000453:epidemiology; D014481:United States; D000095283:Australian Aboriginal and Torres Strait Islander Peoples; D000095284:Maori People