Columbia subject headings:
Hospital utilization--Massachusetts--Boston Metropolitan Area.
Medical care--Utilization--Massachusetts--Boston Metropolitan Area.
Medical personnel--Supply and demand--Massachusetts--Boston Metropolitan Area.
Harvard subject headings:
Hospital utilization--Massachusetts--Boston Metropolitan Area.
Medical care--Utilization--Massachusetts--Boston Metropolitan Area.
Medical personnel--Supply and demand--Massachusetts--Boston Metropolitan Area.
Princeton subject headings:
Hospital utilization--Massachusetts--Boston Metropolitan Area.
Medical care--Massachusetts--Boston Metropolitan Area--Utilization.
Medical personnel--Massachusetts--Boston Metropolitan Area--Supply and demand.