APA
(21995). The New England Journal of Medicine. U.S.A: The Massachusetts Medical Society.
Chicago
21995. The New England Journal of Medicine. U.S.A: The Massachusetts Medical Society.
Harvard
(21995). The New England Journal of Medicine. U.S.A: The Massachusetts Medical Society.
MLA
The New England Journal of Medicine. U.S.A: The Massachusetts Medical Society. 21995.