References1.FY19-107-DPA-S, LC-MS Method for Detection of Six Nitroso Impurities in ARB Drugs.2.FY19-159-DPA-S, Evaluation of Analytical Methods in Ranitidine - NDMA Paper.3.FY19-059-DPQR-S, Review of Potential NDMA Formation from Ranitidine HCl (July 5, 2019)