On the development and validation of the SXS model for ADHF

Reply to a letter to the editor written by Phansalkar et al, regarding publication entitled “Do we need a simplified model to predict outcomes in patients hospitalized with Acute Decompensated Heart Failure Results from The Role of Sodium in Heart Failure Outcomes Prediction (‘SHOUT-PREDICTION’) study. Indian Heart J. 2021;73(4)458–463. doi10.1016j.ihj.2021.06.007”