title: Distribution pattern of microfilariae in relation to sex and age in Guatemalan onchocerciasis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D005260:Female; D006166:Guatemala; D006615:Hip; D006801:Humans; D008297:Male; D008842:Microfilariae / Q000302:isolation & purification; D008875:Middle Aged; D009854:Onchocerca / Q000302:isolation & purification*; D009855:Onchocerciasis / Q000453:epidemiology / Q000469:parasitology*; D012737:Sex Factors; D012782:Shoulder; D012867:Skin / Q000469:parasitology*