Proximal gastric vagotomy: a comparative study between the standard technique and the extended technique associated with denervation of the greater curvature - D'albuquerque, Luiz Augusto Carneiro; Gama Rodrigues, Joaquim José; Miranda, M. P.; Genzini, T; Sakai, P; Laudanna, Antônio Atílio; Pinotti, Henrique Walter (International Surgery, 1991)