6Marshall L,Spiegelman D, Barbieri RL, et al.Variation in the incidence of uterine leiomyoma among premenopausal women by age and race [J]. Obstet Gynecol, 1997,90(6) : 967 - 973.
7Sudik R, Husch K, Steller J, et al. Fertility and pregnancy outcome after myomectomy insterility patients [J]. Eur J Obstet Gynecol Reprod Bio, 1996,65(2) : 209 - 214.