Black physicians and ambulatory care.
D001741:Black or African American; D000553:Ambulatory Care; D005260:Female; D006801:Humans; D008297:Male; D008511:Medicine; D010820:Physicians / Q000706:statistics & numerical data*; D011364:Professional Practice; D012111:Residence Characteristics; D012494:Sampling Studies; D012737:Sex Factors; D013038:Specialization; D014481:United States