title: Piriformis syndrome.
authors.forename: S M
authors.initials: SM
authors.lastname: Levin
mesh_terms: D003937:Diagnosis, Differential; D006615:Hip; D006801:Humans; D007866:Leg; D017116:Low Back Pain / Q000209:etiology*; D018482:Muscle, Skeletal / Q000002:abnormalities*; D009408:Nerve Compression Syndromes; D009985:Orthopedics; D010146:Pain / Q000209:etiology; D013577:Syndrome