title: Ethiopian cardiovascular studies. X. Normal variations of the electrocardiogram in Ethiopians.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D044383:Black People; D004562:Electrocardiography; D005002:Ethiopia; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged