APA
Birkebaek N. H., Kristiansen M., Seefeldt T., Degn J., Moller A., Heron I., Andersen P. L., Moller J. K. & Ostergård L. (19991202). Bordetella pertussis and chronic cough in adults. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.
Chicago
Birkebaek N H, Kristiansen M, Seefeldt T, Degn J, Moller A, Heron I, Andersen P L, Moller J K and Ostergård L. 19991202. Bordetella pertussis and chronic cough in adults. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.
Harvard
Birkebaek N. H., Kristiansen M., Seefeldt T., Degn J., Moller A., Heron I., Andersen P. L., Moller J. K. and Ostergård L. (19991202). Bordetella pertussis and chronic cough in adults. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.
MLA
Birkebaek N H, Kristiansen M, Seefeldt T, Degn J, Moller A, Heron I, Andersen P L, Moller J K and Ostergård L. Bordetella pertussis and chronic cough in adults. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 19991202.