The Annual Ovarian Cycle of the Reeves' Pond Turtle Chinemys reevesii (Reptilia: Geoemydidae) Based on Seasonal Variations in the Serum Vitellogenin Level and Follicular Growth Saka, Masahiro and Tada, Noriko and Kamata, Yoichi, Current Herpetology, 30, 103-110 (2011), DOI:http://dx.doi.org/10.3105/hsj.30.103