1. Department of Gynecology, Osaka International Cancer Institute, 3-1-69, Otemae, Chuo-ku, Osaka-shi 541-8567, Japan
2. Medical Technical Sec., Fuji Latex Co., Ltd., 1705 Chizuka-machi, Tochigi 328-0135, Japan
3. Quality Control Sec., Fuji Latex Co., Ltd., 1705 Chizuka-machi, Tochigi 328-0135, Japan
4. Fuji Latex Co., Ltd., 3-19-1 Kanda Nishiki-cho, Chiyoda-ku, Tokyo 101-0054, Japan