APA

Halperin S. A., Wang E. E., Law B., Mills E., Morris R., Déry P., Lebel M., MacDonald N., Jadavji T., Vaudry W., Scheifele D., Delage G. & Duclos P. (19990915). Epidemiological features of pertussis in hospitalized patients in Canada, 1991-1997: report of the Immunization Monitoring Program--Active (IMPACT). : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

Chicago

Halperin S A, Wang E E, Law B, Mills E, Morris R, Déry P, Lebel M, MacDonald N, Jadavji T, Vaudry W, Scheifele D, Delage G and Duclos P. 19990915. Epidemiological features of pertussis in hospitalized patients in Canada, 1991-1997: report of the Immunization Monitoring Program--Active (IMPACT). : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

Harvard

Halperin S. A., Wang E. E., Law B., Mills E., Morris R., Déry P., Lebel M., MacDonald N., Jadavji T., Vaudry W., Scheifele D., Delage G. and Duclos P. (19990915). Epidemiological features of pertussis in hospitalized patients in Canada, 1991-1997: report of the Immunization Monitoring Program--Active (IMPACT). : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

MLA

Halperin S A, Wang E E, Law B, Mills E, Morris R, Déry P, Lebel M, MacDonald N, Jadavji T, Vaudry W, Scheifele D, Delage G and Duclos P. Epidemiological features of pertussis in hospitalized patients in Canada, 1991-1997: report of the Immunization Monitoring Program--Active (IMPACT). : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 19990915.