[Epidemiologic studies on intestinal protozoa in Costa Rica].
D003364:Costa Rica; D004404:Dysentery, Amebic / Q000453:epidemiology*; D004748:Entamoeba histolytica / Q000302:isolation & purification; D005872:Giardia / Q000302:isolation & purification; D005873:Giardiasis / Q000453:epidemiology*; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology*
Estudios epidemiológicos de protozoos intestinales en Costa Rica.