Morphological changes in mouse embryos cryopreserved by different techniques - Coutinho, A. R. S; Mendes, C. M; Caetano, Heloísa Vasconcellos Amaral; Nascimento, A. B; Oliveira, V. P; Hernandez-Blazquez, Francisco Javier; Sinhorini, Idércio Luiz; Visintin, Jose Antonio; Assumpção, Mayra Elena Ortiz D'Ávila (Microscopy Research Technique, 2007)