TY - GEN AU - GUTIERREZ,J A A TI - [Use of anesthetic mixtures in extradural regional anesthesia] SN - 0032-745X PY - 2002///0501 KW - Anesthesia KW - Anesthesia, Conduction KW - Anesthesiology KW - Anesthetics KW - Humans N1 - Publication Type: Journal Article ER -