ITC Commentary on Metformin Clinical Drug–Drug Interaction Study Design That Enables an Efficacy‐ and Safety‐Based Dose Adjustment Decision. Issue 5 (15th May 2018) - Zamek‐Gliszczynski, Maciej J.; Chu, Xiaoyan; Cook, Jack A.; Custodio, Joseph M.; Galetin, Aleksandra; Giacomini, Kathleen M.; Lee, Caroline A.; Paine, Mary F.; Ray, Adrian S.; Ware, Joseph A.; Wittwer, Matthias B.; Zhang, Lei; et al.