title: Solution to the challenging part of the Shamrock method during lumbar plexus block.
authors.affiliation: Taipei, Taiwan juian.lin@tmu.edu.tw.
authors.forename: J-A
authors.initials: JA
authors.lastname: Lin
authors.affiliation: Taipei, Taiwan.
authors.forename: H-T
authors.initials: HT
authors.lastname: Lu
mesh_terms: D006801:Humans; D008160:Lumbosacral Plexus / Q000000981:diagnostic imaging* / Q000187:drug effects; D009407:Nerve Block / Q000379:methods*; D016658:Psoas Muscles / Q000000981:diagnostic imaging*; D011677:Punctures; D018084:Ultrasonography, Interventional / Q000379:methods*