Kapovits M
J Maxillofac Surg. 1979 Aug;7(3):243-6. doi: 10.1016/s0301-0503(79)80046-6.
Two cases of extensive split thickness skin transplant to the face are presented. It was noted that the usual brownish pigmentation of grafted skin did not occur in these cases. Continued exposure in the open or to sunlight during work has been implicated as a causative factor.