APA-referens

Grarup, P. A., Janner, J. H., & Ulrik, C. S. (2014). Passive Smoking Is Associated with Poor Asthma Control during Pregnancy: A Prospective Study of 500 Pregnancies. PLoS One.

Chicago-stil citat

Grarup, Pernille A., Julie H. Janner, och Charlotte Suppli Ulrik. "Passive Smoking Is Associated With Poor Asthma Control During Pregnancy: A Prospective Study of 500 Pregnancies." PLoS One 2014.

MLA-referens

Grarup, Pernille A., Julie H. Janner, och Charlotte Suppli Ulrik. "Passive Smoking Is Associated With Poor Asthma Control During Pregnancy: A Prospective Study of 500 Pregnancies." PLoS One 2014.

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