The prevalence of intestinal parasitism in six selected areas of Puerto Rico; 5 years afterwards.
D004194:Disease; D006801:Humans; D007410:Intestinal Diseases; D007422:Intestines; D010272:Parasitic Diseases / Q000706:statistics & numerical data*; D015995:Prevalence; D011647:Puerto Rico
INTESTINES/diseases; PARASITIC DISEASES/statistics