1. Das Krebsproblem;Bauer, K.H.,1963
2. Epidermoid carcinoma arising in a pilonidal sinus. Report of a case and review of the literature;Brown, H.W.; Rivera, J.;International Surgery,1968
3. Squamous epithelial cancer of the pleura following extrapleural pneumothorax for pulmonary tuberculosis;Bruce, T.; Dahlstrom, G.; Uggla, L.G.;Acta Tuberculosea Scandinavica,1960
4. Carcinoma of the chest wall complicating chronically draining empyema;Cattaneo, S.M.; Klassen, K.P.;Chest,1973
5. Personal communication;Dahlstrom, G.,1973