[THE CAUSES OF BLINDNESS IN POLAND ON THE BASIS OF EYE EXAMINATIONS OF BLIND SUBJECTS].
D001766:Blindness; D006801:Humans; D009017:Morbidity; D011044:Poland; D019987:Persons with Visual Disabilities
BLINDNESS; MORBIDITY; POLAND
PRZYCZYNY 'SLEPOTY W POLSCE NA PODSTAWIE OKULISTYCZNYCH BADA'N NIEWIDOMYCH.