
(참고자료)
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-'On the black retemucosum of the n****, being a defence against the scorching effect of the sun's rays'(n****은 그.. 단어입니다),Sir Everard Home(1820).
-'Unilateral Dermatoheliosis', Jennifer R.S. Gordon, M.D., and Joaquin C. Brieva, M.D., the New England Journal of Medicine(2012).