Implementation of ICH Q3D Elemental Impurities Guideline: Challenges and OpportunitiesBySarah Thompson,Nancy Lewen,Graham Cook,Andrew Teasdale,Katherine Ulman,Lance Smallshaw,Carlos W. Lee,Helmut Rockstroh,John Glennon,Samuel Powell,Cyrille C. Chéry,Laura Rutter,Laurence Harris,Vicki WoodwardMarch 2nd 2015Assessing risk factors is key to implementing the new ICH Q3D guidelines for elemental impurities.