C. D. dos S. Machado Filho, F. A. Almeida, R. S. Proto, and G. Landman, “Vitiligo: analysis of grafting versus curettage alone, using melanocyte morphology and reverse transcriptase polymerase chain reaction for tyrosinase mRNA”, Sao Paulo Med J, vol. 123, no. 4, pp. 187–191, Jul. 2005.