APA citiranje

Ludvigsson, J. F., Ström, P., Lundholm, C., Cnattingius, S., Ekbom, A., Örtqvist, Å., . . . Stephansson, O. (2015). Maternal vaccination against H1N1 influenza and offspring mortality: Population based cohort study and sibling design. BMJ.

Citação norma Chicago

Ludvigsson, Jonas F., Peter Ström, Cecilia Lundholm, Sven Cnattingius, Anders Ekbom, Åke Örtqvist, Nils Feltelius, Fredrik Granath, and Olof Stephansson. "Maternal Vaccination against H1N1 Influenza and Offspring Mortality: Population Based Cohort Study and Sibling Design." BMJ 2015.

MLA citiranje

Ludvigsson, Jonas F., et al. "Maternal Vaccination against H1N1 Influenza and Offspring Mortality: Population Based Cohort Study and Sibling Design." BMJ 2015.