3Sanchez NP, Pathak MA, Sato S, et al.Melasma: a clinical, light microscopic, ultrastructural, and immunofluorescence study[J]. J Am Acad Dermatol, 1981, 4:698-710.
4Bolognia J, Murray M, Pawelek J, et al.UVB- induced melanogenesis may be mediated through the MSH - receptor system [ J]. J Invest Dermatol, 1989. 92:651-656.
5Hassan I, Kaur I, Sialy R, et al. Hormonal milicu in the maintenance of melasma in fertile women [ J ]. J Dermatol 1998; 25(8): 510-512.
