RT Journal Article SR Electronic T1 The Impact of Preoperative Medical Optimization on Head and Neck Cancer Surgery JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP eS23 OP eS23 VO 76 IS 2 esuppl 1 A1 Tan, Christopher A1 Gibb, Catherine A1 Krishnan, Suren YR 2009 UL http://www.ccjm.org/content/76/2_esuppl_1/eS23.abstract AB