2Longley J, Demar L, Feinstein RP,et al. Clinical and histologic features of pityriasis lichenoides et varioliformis acuta in children[ J]. Arch Dermatol, 1987,123,1335 - 1339.
3Moschella, H. Dermatology [ M ]. 3rd ed. Philadelphia: W. B Saunders Co, 1992. 638 - 641.
4Odom RB. Andrews' disease of the skin:Clinical Dermatology[M]. 9th ed. Philadelphia: W. B Saunders Co,2000. 254 -257.
5Braun-Falco O. Dermatology [ M ]. 2nd ed. Berlin: Springer, 2000. 613- 620.