title: Cations and other environmental variables in normotensive and hypertensive urban Africans and 'coloureds'.
mesh_terms: D000328:Adult; D044383:Black People; D001794:Blood Pressure; D002412:Cations / Q000032:analysis*; D006801:Humans; D006973:Hypertension / Q000208:ethnology*; D008875:Middle Aged; D013019:South Africa; D014505:Urban Population
chemical_list: D002412:Cations