Effects of hyperbaric 0.5% bupivacaine contaminated with antiseptic solutions on spinal cord and meninges. experimental study in dogs - Ganem, Fliana Marisa [UNESP]; Vianna, Pedro Thadeu G. [UNESP]; Marques, Mariangela [UNESP]; Modolo, Norma Sueli P. [UNESP]; Braz, Jose Reinaldo C. [UNESP] (My University, 1993)