hCG promotes proliferation of uterine leiomyomal cells more strongly than that of myometrial smooth muscle cells in vitro. - Horiuchi,A.; Nikaido,T.; Yoshizawa,T.; Itoh,K.; Kobayashi,Y.; Toki,T.; Konishi,I.; Fujii,S. (Mol Hum Reprod, 2000)