The United States-Mexico border: health problems and opportunities.
D003140:Communicable Disease Control / Q000639:trends*; D003695:Delivery of Health Care / Q000639:trends*; D004782:Environmental Health; D006801:Humans; D007391:International Cooperation; D008800:Mexico; D009784:Occupational Diseases / Q000517:prevention & control*; D014481:United States