552,781 NELZÉN OLLE Patients with chronic leg ulcer : aspects on epidemiology, aetiology, clinical history, prognosis and choice of treatment : [dissertation for the degree of the doctor of medical science in surgery] / by Olle Nelzén. - Uppsala j Acta Universitatis Upsalie-nsis, 1997. - 88 s. : wykr. ; 24 cm (Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 0282-7476 ; 664) ISBN 91-554-3892-X