[1] Cao CM. Melagenine:a Cuban product. A new and effective drug for the treament of vitiligo, series of National Reports, Havana:Republic of Cuba, 1986. [2] Suite M, Quamina DB. Treatment of vitiligo with topical melagenine-a human placental extract. J Am Acad Dermatol, 1991, 24:1018-1019. [3] Pal P, Roy R, Datta PK, et al. Hydroalcoholic human placental extract:skin pigmenting activity and gross chemical composition.Int J Dermatol. 1995.34:61-66. [4] 许爱娥,尉晓冬,毕志刚,等黑素生成素对黑素细胞增殖和黑素合成作用的研究中华皮肤科杂志,1997,30:21-23.