About the Authors

Noriaki Arakawa

Affiliations Department of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan, Advanced Medical Research Center, Yokohama City University, Yokohama, Kanagawa, Japan

Hiroshi Kobayashi

Affiliation Department of Obstetrics and Gynecology, Nara Medical University, Nara, Japan

Naohiro Yonemoto

Current address: Department of Biostatistics, School of Public Health, Kyoto University, Kyoto, Japan

Affiliation Department of Biostatistics, Center for Novel and Explanatory Clinical Trials (Y-NEXT), Yokohama City University, Yokohama, Kanagawa, Japan

Yusuke Masuishi

Affiliations Department of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan, Advanced Medical Research Center, Yokohama City University, Yokohama, Kanagawa, Japan

Yoko Ino

Affiliations Department of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan, Advanced Medical Research Center, Yokohama City University, Yokohama, Kanagawa, Japan

Hiroshi Shigetomi

Affiliation Department of Obstetrics and Gynecology, Nara Medical University, Nara, Japan

Naoto Furukawa

Affiliation Department of Obstetrics and Gynecology, Nara Medical University, Nara, Japan

Norihisa Ohtake

Affiliation Bioscience Division, Reagent Development Department, Tosoh Corporation, Ayase, Kanagawa, Japan

Yohei Miyagi

Affiliation Research Institute, Kanagawa Cancer Center, Yokohama, Kanagawa, Japan

Fumiki Hirahara

Affiliation Yokohama City University Hospital, Department of Obstetrics and Gynecology, Yokohama, Kanagawa, Japan

Hisashi Hirano

Affiliations Department of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan, Advanced Medical Research Center, Yokohama City University, Yokohama, Kanagawa, Japan

Etsuko Miyagi

emiyagi@yokohama-cu.ac.jp

Affiliation Yokohama City University Hospital, Department of Obstetrics and Gynecology, Yokohama, Kanagawa, Japan

Competing Interests

NA had previously received a research funding from Tosoh Co., Ltd. for another research project. NA, Y. Masuishi, FH, HH and EM are inventors of patents on ovarian CCC biomarkers filed by and issued to Yokohama City University. Also, NA, NO, HH, and EM are inventors of patents related to TFPI2 in ovarian CCC diagnosis which are jointly filed by Yokohama City University and Tosoh Co., Ltd. These facts do not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: NA HK EM. Data curation: NA. Formal analysis: NA Y. Miyagi. Funding acquisition: NA HH. Investigation: NA Y. Masuishi YI HS. Methodology: NA NY. Project administration: FH HH EM. Resources: HK NF NO Y. Miyagi EM. Supervision: HK EM. Validation: NA NO. Writing – original draft: NA EM. Writing – review & editing: NY EM.