RT Journal Article SR Electronic T1 Economic Aspects of Preoperative Testing JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP eS18 OP eS18 VO 77 IS 3 esuppl 1 A1 Gerhard Fritsch A1 Maria Flamm A1 Josef Seer A1 Andreas Soennichsen YR 2010 UL http://www.ccjm.org/content/77/3_esuppl_1/eS18.abstract AB