Hypertension knowledge, attitudes and perceptions among adults in the Navrongo Health and Demographic Surveillance Site: a mixed methods analysis oleh Ahaana Singh, Godfred Agongo, Samuel T. Chatio, Bernard Logonia, Cornelius Y. Debpuur, Patrick O. Ansah, Abraham R. Oduro, Kerstin Klipstein-Grobusch, Engelbert A. Nonterah