Glycol methacrylate-embedding medium to study morphological alterations of saphenous vein under brief and crescent pressurizations - Prado, Cibele M.; Viaro, Fernanda; Baldo, Caroline F.; Augusto, Viviane dos Santos; Rodrigues, Alfredo José; Évora, Paulo Roberto Barbosa (Acta Cirúrgica Brasileira, 2008)