354 F.3d 710 Jerry GREGG, Appellant,v.Jo Anne B. BARNHART, Commissioner of Social Security, Appellee. No. 03-1451. United States Court of Appeals, Eighth Circuit. Submitted: October 23, 2003. Filed: December 30, 2003. COPYRIGHT MATERIAL OMITTED Steven C. Jayne, Des Moines, IA, for appellant. Christopher D. Hagen, AUSA, Des Moines, IA, Rhonda Norcross-Kempker, Kansas City, MO, for […]