RT Journal Article SR Electronic T1 We need your help JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 519 OP 519 VO 69 IS 7 A1 Clough, John D. A1 Studer, Peter G. YR 2002 UL http://www.ccjm.org/content/69/7/519.abstract AB