Columbia subject headings:
Confidential communications--Physicians--Germany (West)
Confidential communications--Physicians--United States.
Medical laws and legislation--Germany (West)--Data processing.
Medical laws and legislation--United States--Data processing.
Harvard subject headings:
Confidential communications--Physicians--Germany (West)
Confidential communications--Physicians--United States.
Medical laws and legislation--Germany (West)--Data processing.
Medical laws and legislation--United States--Data processing.
Princeton subject headings: