1. What Can a Urine Drug Screening Immunoassay Really Tell Us?. (October 2016) Authors: Nelson, Zachary J.; Stellpflug, Samuel J.; Engebretsen, Kristin M. Journal: Journal of pharmacy practice Issue: Volume 29:Number 5(2016:Oct.) Page Start: 516 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗