Age at first sexual intercourse among young women with invasive cervical cancer: implications for routine vaccination against human papillomavirus in Japan

Affiliations

• ¹ Department of Gynecologic Oncology, Hyogo Cancer Center, Akashi, Japan.
• ² Department of Obstetrics and Gynecology, Showa University School of Medicine, Tokyo, Japan.
• ³ Department of Gynecology and Obstetrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
• ⁴ Department of Gynecology, Cancer Institute Hospital, Tokyo, Japan.
• ⁵ Department of Gynecology, Saitama Cancer Center, Saitama, Japan.
• ⁶ Gynecology Service, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
• ⁷ Department of Gynecology, Kanagawa Cancer Center, Kanagawa, Japan.
• ⁸ Department of Gynecologic Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan.
• ⁹ Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan.
• ¹⁰ Department of Obstetrics and Gynecology, Tohoku University School of Medicine, Sendai, Japan.