TY - GEN AU - Wassef,Medhat R AU - Michaels,Emil I AU - Rangel,Jeffrey M AU - Tsyrlin,Arkadiy T TI - Spinal perianal block: a prospective, randomized, double-blind comparison with spinal saddle block SN - 1526-7598 PY - 2007///0614 KW - Adult KW - Aged KW - Anal Canal KW - drug effects KW - Anesthesia, Spinal KW - methods KW - Bupivacaine KW - administration & dosage KW - Double-Blind Method KW - Female KW - Humans KW - Male KW - Middle Aged KW - Nerve Block KW - Posture KW - physiology KW - Prospective Studies N1 - Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial UR - https://doi.org/10.1213/01.ane.0000261510.37489.00 ER -