1. Sendai ART Clinic, 206-13 Nagakecho, Miyagino, Sendai 983-0864, Miyagi, Japan
2. Department of Clinical Regenerative Medicine, Fujita Medical Innovation Center, 1-1-4 Hanedakuko, Ota, Tokyo 144-0041, Japan
3. Department of Obstetrics and Gynecology, Kawasaki Medical School, 577 Matsushima, Kurashiki 701-0192, Okayama, Japan
4. Fukushima Medical Center for Children and Women, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Fukushima, Japan
5. Department of Urology, Toho University, 5-21-16 Omori-Nishi, Ota, Tokyo 143-8540, Japan