title: Intrathecal drug spread and duration of block.
authors: H K
authors: HK
authors: King
mesh_terms: D000779:Anesthetics, Local / Q000008:administration & dosage / Q000134:cerebrospinal fluid / Q000493:pharmacokinetics*; D004305:Dose-Response Relationship, Drug; D006801:Humans; D007278:Injections, Spinal; D009407:Nerve Block / Q000379:methods*; D012996:Solutions; D013346:Subarachnoid Space
chemical_list: D000779:Anesthetics, Local; D012996:Solutions