Serna-Pérez M J, Vázquez-Doval F J, Idoate M, Sola Casas M A, Quintanilla E
Department of Dermatology, University Clinic, Navarra University School of Medicine, Pamplona, Spain.
Int J Dermatol. 1992 Apr;31(4):277-8. doi: 10.1111/j.1365-4362.1992.tb03571.x.