The possible existence of occult metastasis in patients with ovarian clear-cell carcinoma who underwent complete resection without any residual tumours

Hiroaki Kajiyama, Shiro Suzuki, Masato Yoshihara, Kimihiro Nishino, Nobuhisa Yoshikawa, Fumi Utsumi, Kaoru Niimi, Mika Mizuno, Michiyasu Kawai, Hidenori Oguchi, Kimio Mizuno, Osamu Yamamuro, Tetsuro Nagasaka, Kiyosumi Shibata, Fumitaka Kikkawa