1. Counseling African Americans to Control Hypertension: Cluster-Randomized Clinical Trial Main Effects Ogedegbe, Gbenga; Tobin, Jonathan N.; Fernandez, Senaida; Cassells, Andrea; Diaz-Gloster, Marleny; Khalida, Chamanara; Pickering, Thomas; Schwartz, Joseph E. 2014 Articles African Americans--Health and hygieneClinical trialsHypertensionMedical sciencesEpidemiology