1. S-54185 Skovde, Sweden O Nelzen A Lindhagen T Hallbook Department of Surgery, General Hospital;Nelzen, D.Bergqvist; Lindhagen, A.; of Surgery, T.Hallbook Department; Karnsjukhuset,1990
2. Chronic ulceration of the leg. Extent ofthe problem and provision of care;Callam, M.J.; Harper, D.R.; Dale, J.J.; Ruckley, C.V.;BMJ,1985
3. Leg ulcers: epidemiology and aetiology;Cornwall, J.V.; Dore, C.J.; Lewis, J.D.,1986
4. Peripheral venous disorders; prevalence and sociomedical importance;Widmer, L.K.,1978
5. The incidence of venous thrombosis and its sequelae in certain districts of Sweden;Gjores, J.F.;Acta Chir Scand,1956