1. Lapeere H, Borne B, Schepper S, Verhaeghe E, Ongenae K, Geel NV. Hypomelanosis and hypermelanosis. In: Wolff K, Goldsmith LA, Katz SI, Gilchrest BA, Paller AS, Leffell DJ, editors. Dermatology in General Medicine, 7 th ed. New York: McGraw-Hill; 2008. P. 622-40.
2. Karen JK, Pomeranz MK. Skin changes and diseases in pregnancy. In: Wolff K, Goldsmith LA, Katz SI, Gilchrest BA, Paller AS, Leffell DJ, editors. Dermatology in General Medicine, 7th ed. New York: McGraw-Hill; 2008. P. 955-62.