title: Avoiding misunderstandings.
authors.forename: Alejandro E
authors.initials: AE
authors.lastname: Delfino
authors.forename: Fernando R
authors.initials: FR
authors.lastname: Altermatt
mesh_terms: D001340:Autonomic Nerve Block / Q000592:standards*; D002983:Clinical Competence / Q000592:standards*; D006801:Humans; D007396:Internship and Residency / Q000592:standards*; D010820:Physicians / Q000592:standards*; D011597:Psychomotor Performance; D014463:Ultrasonography / Q000592:standards*