title: Piriformis syndrome.
authors.forename: Robert L
authors.initials: RL
authors.lastname: Tiel
authors.forename: David G
authors.initials: DG
authors.lastname: Kline
mesh_terms: D006801:Humans; D007866:Leg; D018482:Muscle, Skeletal / Q000503:physiopathology*; D012585:Sciatica / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology*; D013577:Syndrome