COX-2
Until the selective COX-2       inhibitors are widely used and more clinical as well as pharmacoeconomic studies        are published, the exact role of COX-2 therapy cannot be determined.
Until the selective COX-2       inhibitors are widely used and more clinical as well as pharmacoeconomic studies        are published, the exact role of  @SUBJECT$  @PREDICAT$  @OBJECT$  cannot be determined.