1. Environmental risk assessment of metformin and its transformation product guanylurea. I. Environmental fate. (February 2019) Authors: Straub, Jürg Oliver; Caldwell, Daniel J.; Davidson, Todd; D'Aco, Vincent; Kappler, Kelly; Robinson, Paul F.; Simon-Hettich, Brigitte; Tell, Joan Journal: Chemosphere Issue: Volume 216(2019) Page Start: 844 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗