TY - JOUR T1 - Erratum JF - Cleveland Clinic Journal of Medicine JO - Cleve Clin J Med SP - 39 LP - 39 VL - 30 IS - 1 A2 - , Y1 - 1963/01/01 UR - http://www.ccjm.org/content/30/1/39.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -