L. Väkevä, S. Sarna, A. Vaalasti, E. Pukkala, A. Kariniemi, and A. Ranki, “A retrospective study of the probability of the evolution of parapsoriasis en plaques into mycosis fungoides”, Acta Derm Venereol, vol. 85, no. 4, pp. 318–323, Jul. 2005.