01098nas a2200409   4500000000100000000000100001008004100002653003800043653002200081653003500103653002100138653001300159653002500172653001700197653001300214653002600227653002000253100001200273700001200285700001200297700001400309700001200323700001100335700001200346700001600358700001300374700001400387700001200401700001400413700001500427700001300442700001200455700001500467245017700482250001500659020001400674       2025                            d10aDipeptidyl peptidase-4 inhibitors10aactive-comparator10aand Inflammatory Bowel Disease10acausal inference10anew-user10apharmacoepidemiology10astudy design10aswitcher10atime-varying exposure10atrial emulation1 aT. Wang1 aJ. Wang1 aZ. Song1 aE. Miller1 aV. Pate1 aQ. Her1 aJ. Yang1 aS. Charlier1 aP. Egger1 aE. Barnes1 aJ. Buse1 aC. Becker1 aR. Sandler1 aC. Meier1 aS. Jick1 aT. Sturmer00aCaution in Handling Switchers in Pharmacoepidemiologic Studies Estimating Treatment Effects: The Example of Dipeptidyl Peptidase-4 Inhibitors and Inflammatory Bowel Disease  a2025/03/12  a0002-9262