5Yao L Q, Kuang J Q, Feng Y J, et al.characteriation of unilateral polycystic ovary compared with polycystic ovary syndrome [J]. Fertil Steril,2006,85 (3) :805-808.
6Kraplani A,Agarwal N]. Effects of metformin on clinical and biochemical parameters in polycystic ovary syndrome [J]. Journal of reproductive medicine, 2004,49( 5 ) : 361-367.