550,503 EHNFORS MARGARETA Quality of care from a nursing perspective : methodological considerations and development of a model for nursing documentation : [doctoral thesis] / by Margareta Ehnfors. - Uppsala : Acta Universitatis Upsaliensis, 1993. - [2], 67, [3] s. : 24 cm (Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 0208-7476 ; 415) ISBN 91-554-3125-9