title: Pneumothorax case caveat: always visualize needle tip.
authors.affiliation: Department of Anesthesiology, Worcestershire Royal Hospital, Charles Hastings Way, Worcester, United Kingdom.
authors.forename: Jing J
authors.initials: JJ
authors.lastname: Lee
mesh_terms: D006801:Humans; D019300:Medical Errors; D009407:Nerve Block / Q000009:adverse effects*; D011030:Pneumothorax / Q000209:etiology*; D018084:Ultrasonography, Interventional