Hollow fiber vitrification provides a novel method for cryopreserving in vitro maturation/fertilization-derived porcine embryos - Maehara, M; Matsunari, H; Honda, K; Nakano, K; Takeuchi, Y; Kanai, T; Matsuda, T; Matsumura, Y; Hagiwara, Y; Sasayama, N; Shirasu, A; Takahashi, M; Watanabe, M; Umeyama, K; Hanazono, Y; Nagashima, H (Biol Reprod, 2012)