TY - JOUR T1 - Preface JF - Cleveland Clinic Journal of Medicine JO - Cleve Clin J Med SP - S4 LP - S4 VL - 76 IS - 4 suppl 2 AU - Earl E. Bakken Y1 - 2009/02/01 UR - http://www.ccjm.org/content/76/4_suppl_2/S4.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -