1. Does long‐term use of proton pump inhibitors cause vitamin B12 deficiency?. Issue 10 (October 2017) Authors: Dela Cruz, Mark T.; Patel, Sohil; Ngo, Lynn; Sullivan, Kevin Journal: Evidence-based practice Issue: Volume 20:Issue 10(2017) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗