1 C. Brufau, M.D., is Internal Resident (4th year), Department of Medico-Surgical Dermatology and Venereology, University of Salamanca, Salamanca, Spain, and Assistant Professor, Department of Medico-Surgical Dermatology and Venereology, Faculty of Medicine, University of Murcia, Murcia, Spain.
2 M. Canteras is Assistant Professor, Department of Biostatistics, Faculty of Medicine, University of Murcia, Murcia, Spain.
3 M. Armijo, M.D. is Professor of Medico-Surgical Dermatology and Venereology and Head of the Department of Medico-Surgical Dermatology and Venereology, University Hospital, Faculty of Medicine, University of Salamanca, Salamanca, Spain.
Address reprint requests to M. Armijo, M.D., Department of Medico-Surgical Dermatology and Venereology, University Hospital, P. San Vincente s/n, Salamanca, Spain.
This paper was presented at the IV International Congress for Dermatologic Surgery, 1983, Granada, Spain.
