Cita APA (7th ed.)

British Medical Association. (1988). BMJ: British medical journal (Clinical research [ed.].). British Medical Association.

Cita Chicago (17th ed.)

British Medical Association. BMJ: British Medical Journal. Clinical research [ed.]. London: British Medical Association, 1988.

Cita MLA (9th ed.)

British Medical Association. BMJ: British Medical Journal. Clinical research [ed.]. British Medical Association, 1988.