Columbia subject headings:
Brain--Diseases--Treatment.
Gastrointestinal system--Diseases--Treatment.
Heart--Diseases--Treatment.
Liver--Diseases--Treatment.
Lungs--Diseases--Treatment.
Stomach--Diseases--Treatment.
Harvard subject headings:
Brain--Diseases--Treatment--Case studies.
Gastrointestinal system--Diseases--Treatment--Case studies.
Heart--Diseases--Treatment--Case studies.
Liver--Diseases--Treatment--Case studies.
Lungs--Diseases--Treatment--Case studies.
Stomach--Diseases--Treatment--Case studies.
Princeton subject headings: