title: A roundworm problem in the Philippines.
authors.forename: M F
authors.initials: MF
authors.lastname: HANSEN
authors.forename: H A
authors.initials: HA
authors.lastname: BERN
mesh_terms: D001196:Ascariasis / Q000453:epidemiology* / Q000706:statistics & numerical data*; D001699:Biometry; D006801:Humans; D009349:Nematode Infections; D010679:Philippines