About the Authors

Young-Sun Kim

Contributed equally to this work with: Young-Sun Kim, Kyung Sook Kim

Affiliation Department of Obstetrics and Gynecology, School of Medicine, Kyung Hee University Hospital, Kyung Hee University, Seoul, Korea

Kyung Sook Kim

Contributed equally to this work with: Young-Sun Kim, Kyung Sook Kim

Affiliations Department of Biomedical Engineering, College of Medicine, Kyung Hee University, Seoul, Korea, Healthcare Industry Research Institute, Kyung Hee University, Seoul, Korea

Ihn Han

Affiliation College of Oriental Medicine, Kyung Hee University, Seoul, Korea

Mi-Hyun Kim

Affiliations Department of Biomedical Engineering, College of Medicine, Kyung Hee University, Seoul, Korea, Healthcare Industry Research Institute, Kyung Hee University, Seoul, Korea

Min Hyung Jung

Affiliation Department of Obstetrics and Gynecology, School of Medicine, Kyung Hee University Hospital, Kyung Hee University, Seoul, Korea

Hun-Kuk Park

sigmoidus@khu.ac.kr (HKP); webhospital@naver.com (MHJ)

Affiliations Department of Biomedical Engineering, College of Medicine, Kyung Hee University, Seoul, Korea, Healthcare Industry Research Institute, Kyung Hee University, Seoul, Korea, Program of Medical Engineering, Kyung Hee University, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YSK KSK MHJ HKP. Performed the experiments: YSK IH MHK. Analyzed the data: KSK YSK MHJ. Contributed reagents/materials/analysis tools: IH MHK MHJ HKP. Wrote the paper: KSK YSK.