M. H. Dar, S. F. Falah, I. khan, A. khan, and U. Ali, “EFFICACY OF VALSARTAN PLUS AMLODIPINE VERSUS VALSARTAN PLUS HYDROCHLOROTHIAZIDE FOR CONTROL OF MODERATE TO SEVERE HYPERTENSION: A RANDOMIZED CONTROLLED TRIAL”, Pak Heart J, vol. 50, no. 1, Jun. 2017.