Combination of Telmisartan 40 mg Plus Hydrochlorothiazide (HCTZ) 12.5 mg vs. Telmisartan 40 mg Alone in Patients With Essential Hypertension Who Fail to Respond Adequately to Telmisartan Monotherapy [clinicaltrials:NCT00144222]

Combination of Telmisartan 40 mg Plus Hydrochlorothiazide (HCTZ) 12.5 mg vs. Telmisartan 40 mg Alone in Patients With Essential Hypertension Who Fail to Respond Adequately to Telmisartan Monotherapy [clinicaltrials:NCT00144222]