5Gurk i rpa 1 S, John GF, Jay LG , e tal.Celecoxib versus naproxen and diclofenacin osteoarthritis patients: succes-I Study[J ] . Am J Med, 2006, 119 ( 3 ) : 255-266.
3Roland M,Morris R,A study of the natural history of back pain:Part Ⅰ Development of a reliable and sensitive measure of disability in low back pain[J] .Spine,1983,8:141-144.