<style face="normal" font="default" size="100%">Caution in Handling Switchers in Pharmacoepidemiologic Studies Estimating Treatment Effects: The Example of Dipeptidyl Peptidase-4 Inhibitors and Inflammatory Bowel Disease</style>

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0<style face="normal" font="default" size="100%">Caution in Handling Switchers in Pharmacoepidemiologic Studies Estimating Treatment Effects: The Example of Dipeptidyl Peptidase-4 Inhibitors and Inflammatory Bowel Disease</style><style face="normal" font="default" size="100%">Caution in Handling Switchers in Pharmacoepidemiologic Studies Estimating Treatment Effects: The Example of Dipeptidyl Peptidase-4 Inhibitors and Inflammatory Bowel Disease</style>