title: [Studies on etiology and prevention of blindness based on information obtained from the administrative district of Hajdu-Bihar].
mesh_terms: D000349:Africa; D001208:Asia; D001766:Blindness / Q000145:classification / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control; D005060:Europe; D006801:Humans; D006814:Hungary; D014481:United States
vernacular_title: Die Untersuchung der Ursachen und der Prävention der Blindheit auf Grund der Angaben des Komitats von Hajdu-Bihar.