2Taylor CS, Fran C, Rahman Z, et al. J Am Acad Dermatol 2002;46:98-106.
3Gary M. White MD San Diego, California. Recent findings in the epidemiologic evidence classification, and subtybes of acne vulgaris. J Am Acad Dermatol 1998;39(S):34-37.
5Cordain L, Lindeberg S, Hurtado M, et al. Acne Vulgaris. Arch Dermatol 2002;138:1584-1590.
6Plunket A, Merlin K, Gill D, et al. The frequency of common nonmalignant skin conditions in adults in central Victoria, Australia. Int J Dermatol 1999;38:901-908.
7Jchild F. A study of the spectrum of skin disease occurring in a black population in south- east London. Br J Dermatol 1999; 141:512-517.
