INS and diabetes mellitus: Polderman Polderman JA JA Houweling Houweling PL PL Hollmann Hollmann MW MW DeVries DeVries JH JH Preckel Preckel B B Hermanides Hermanides J J Study protocol of a randomised controlled trial comparing perioperative intravenous insulin, GIK or GLP-1 treatment in diabetes–PILGRIM trial Study protocol of a randomised controlled trial comparing perioperative intravenous insulin, GIK or GLP-1 treatment in diabetes–PILGRIM trial BMC Anesthesiol BMC Anesthesiol 2014 2014 14 14 1 1 91 91 10.1186/1471-2253-14-91 10.1186/1471-2253-14-91 supplied-pmid 25419179?