00530cam a2200157 a 4500001000700000003000400007005000900011008005900020245012300079260003200202300000800234505006100242650002800303700002800331040001300359137983OSt201809210000001969                          USAAN  0000000000ENG00  aRegional anesthesia : recent advances and current status /cRegional anesthesia : recent advances and current status /  aPhiladelphia :bF. A. Davis  av.2  aRegional anesthesia : recent advances and current status  aANESTESIA DE CONDUCCION  aeditaI. Bonica, John J  aDLCcDLC