title: When is a single-injection nerve block not really a single injection?
authors.forename: Meg A
authors.initials: MA
authors.lastname: Rosenblatt
mesh_terms: D006801:Humans; D007267:Injections; D009103:Multiple Sclerosis / Q000628:therapy; D009407:Nerve Block / Q000009:adverse effects / Q000379:methods*; D014465:Ultrasonics