article 2001 A pilot study to examine the perifollicular vascularity by transvaginal ultrasonography between different regimens of clomiphene citrate in subfertile Chinese women ·doi:10.1080/gye.15.s5.1.228 The 9th World Congress of Gynecological Endocrinology, Hong Kong, 2-5 December 2001. In Gynecological Endocrinology, 2001, v. 15 n. suppl. s5, p. 101, abstract no. OP59