Effect of Intraperitoneal Administration of Desialylated Erythropoietin on the Follicular Survival in Cryopreserved Canine Ovaries after Xenotransplantation Hirayama, Yukari and Inoue, Kou-suke and Suzuki, Hiroshi, Journal of Mammalian Ova Research, 28, 143-147 (2011), DOI:http://dx.doi.org/10.1274/jmor.28.143