Sheehan-Dare, R., Cotterill, J. and Barnard, D. (1989) “Transformation of myelodysplasia to acute myeloid leukaemia during psoralen photochemotherapy (PUVA) treatment of psoriasis”, Acta Dermato-Venereologica, 69(3), pp. 262–264. doi: 10.2340/0001555569262264.