title: [Letter: Epidural analgesia. "The hanging drop" for identification of the epidural space].
mesh_terms: D000767:Anesthesia, Epidural; D008722:Methods; D011187:Posture; D013997:Time Factors
vernacular_title: Korrespondanser: Epiduralanalgesi. "Den hengende dråpe" til identifisering au det epidurale rom