Correlative analysis of reliability and validity of plain radiology, MOS short-form health survey and surgical examination in making decision for treatment of chronic low back pain patients. - Korovessis, Panagiotis; Dimas, Anastasios; Koureas, Georgios; Zacharatos, Spyridon; Petsinis, Georgios; Baikousis, Andreas (European Journal of Orthopaedic Surgery & Traumatology, 2004)