Real-world Pattern of Biologic Use in Patients With Inflammatory Bowel Disease: Treatment Persistence, Switching, and Importance of Concurrent Immunosuppressive Therapy. Issue 8 (17th July 2019) - Chen, Chao; Hartzema, Abraham G; Xiao, Hong; Wei, Yu-Jung; Chaudhry, Naueen; Ewelukwa, Ofor; Glover, Sarah C; Zimmermann, Ellen M