title: Sowda onchocerciasis in Nigeria.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009855:Onchocerciasis / Q000453:epidemiology* / Q000469:parasitology; D012867:Skin / Q000469:parasitology; D012876:Skin Diseases, Parasitic / Q000453:epidemiology* / Q000469:parasitology