551,256 KALM HELLE Diabetic retinopathy screeingn : method and strategy :akademisk avhandling / by Helle Kalm ; from the Department of Ophthalmology, Sahlgren's Hospital, University of Göteborg, Sweden. - Göteborg : University, 1993. - 80, [61] s. : wykr. : 24 cm Zawiera 6 prac współaut. Oprawa akoroszytowa ISBN 91-628-0931-8