Long Term Study of VAH631 in Patients With Essential Hypertension (Extension From B1303 Study)
A 52-week Extension to the Factorial Study to Evaluate the Efficacy and Safety of VAH631 (Valsartan and Hydrochlorothiazide Combined) and Alone in Essential Hypertensive Patients - Long Term Study of VAH631 in Patients With Essential Hypertension (Extension From B1303 Study) -