Localization and gene expression of steroid sulfatase by RT-PCR in cumulus cells and relationship to serum FSH levels observed during in vitro fertilization Yukiko Otsuka, Atsushi Yanaihara, Shinji Iwasaki, Junichi Hasegawa, Takumi Yanaihara and Takashi Okai Journal of Experimental & Clinical Assisted Reproduction 2005,
2:6 doi:10.1186/1743-1050-2-6