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Oparil, S., S G. Chrysant, M. Melino, J. Lee, S. Karki, ja R. Heyrman. Long-term Efficacy of a Combination of Amlodipine and Olmesartan Medoxomil±hydrochlorothiazide in Patients With Hypertension Stratified By Age, Race and Diabetes Status: A Substudy of the COACH Trial. Nature Publishing Group, 2010.

Oparil, S., et al. Long-term Efficacy of a Combination of Amlodipine and Olmesartan Medoxomil±hydrochlorothiazide in Patients With Hypertension Stratified By Age, Race and Diabetes Status: A Substudy of the COACH Trial. Nature Publishing Group, 2010.