title: Tied up in science: unknotting an old anaesthetic problem.
authors: University Medical Centre Groningen, Department of Anaesthesiology, Groningen, Netherlands.
authors: Clemens R M
authors: CR
authors: Barends
authors: Anthony R
authors: AR
authors: Absalom
mesh_terms: D000758:Anesthesia / Q000379:methods; D000776:Anesthesiology / Q000295:instrumentation*; D006801:Humans