Primary care in the USA.
D002321:Career Choice; D004470:Economics, Medical; D005194:Family Practice / Q000191:economics; D005550:Foreign Medical Graduates / Q000706:statistics & numerical data; D006801:Humans; D007396:Internship and Residency / Q000706:statistics & numerical data*; D008511:Medicine / Q000706:statistics & numerical data*; D013038:Specialization; D013337:Students, Medical / Q000523:psychology*; D014481:United States