title: [Epidemiologic studies on 4 soil-transmitted intestinal nematodes in Costa Rica].
mesh_terms: D001200:Ascaris / Q000302:isolation & purification*; D003364:Costa Rica; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology; D009331:Necator / Q000302:isolation & purification*; D009349:Nematode Infections / Q000453:epidemiology; D012987:Soil; D013321:Strongyloides / Q000302:isolation & purification*; D014259:Trichuroidea / Q000302:isolation & purification*
chemical_list: D012987:Soil
vernacular_title: Estudios epidemiológicos sobre cuatro nematodos intestinales transmitidos por el suelo en Costa Rica.