title: Retinol, onchocerciasis and Onchocerca volvulus.
mesh_terms: D000818:Animals; D006801:Humans; D009854:Onchocerca / Q000378:metabolism; D009855:Onchocerciasis / Q000378:metabolism*; D014801:Vitamin A / Q000378:metabolism*
chemical_list: D014801:Vitamin A