APA
Ekdahl K., Ahlinder I., Hansson H. B., Melander E., Mölstad S., Söderström M. & Persson K. (19980212). Duration of nasopharyngeal carriage of penicillin-resistant Streptococcus pneumoniae: experiences from the South Swedish Pneumococcal Intervention Project. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.
Chicago
Ekdahl K, Ahlinder I, Hansson H B, Melander E, Mölstad S, Söderström M and Persson K. 19980212. Duration of nasopharyngeal carriage of penicillin-resistant Streptococcus pneumoniae: experiences from the South Swedish Pneumococcal Intervention Project. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.
Harvard
Ekdahl K., Ahlinder I., Hansson H. B., Melander E., Mölstad S., Söderström M. and Persson K. (19980212). Duration of nasopharyngeal carriage of penicillin-resistant Streptococcus pneumoniae: experiences from the South Swedish Pneumococcal Intervention Project. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.
MLA
Ekdahl K, Ahlinder I, Hansson H B, Melander E, Mölstad S, Söderström M and Persson K. Duration of nasopharyngeal carriage of penicillin-resistant Streptococcus pneumoniae: experiences from the South Swedish Pneumococcal Intervention Project. : Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 19980212.