title: Factor structure of the Neck Disability Index.
authors: Charles Philip
authors: CP
authors: Gabel
authors: Markus
authors: M
authors: Melloh
authors: Antonio I
authors: AI
authors: Cuesta-Vargas
mesh_terms: D002574:Cervical Vertebrae / Q000503:physiopathology*; D006801:Humans; D019547:Neck Pain / Q000175:diagnosis* / Q000503:physiopathology*