Effects of Time on Ultrastructural Integrity of Parathyroid Tissue Before Cryopreservation - Barreira, Carlos Eduardo Santa Ritta; Cernea, Claudio Roberto; Brandão, Lenine Garcia; Custódio, Melani Ribeiro; Caldini, Elia Tamaso Espin Garcia; Montenegro, Fabio Luiz de Menezes (World Journal of Surgery, 2011)