Immature bovine oocyte cryopreservation: comparison of different associations with ethylene glycol, glycerol and dimethylsulfoxide - Yamada, Claudia; Caetano, Heloísa Vasconcellos Amaral; Simões, Renata; Nicacio, Alessandra Corallo; Feitosa, Weber Beringui; Assumpção, Mayra Elena Ortiz D'Ávila; Visintin, Jose Antonio (Animal Reproduction Science, 2007)