Dyfyniad APA

Gershon, A. S., Guan, J., Wang, C., Victor, J. C., & To, T. (2012). Describing and Quantifying Asthma Comorbidty: A Population Study. Public Library of Science.

Dyfyniad Arddull Chicago

Gershon, Andrea S., Jun Guan, Chengning Wang, J. Charles Victor, and Teresa To. Describing and Quantifying Asthma Comorbidty: A Population Study. Public Library of Science, 2012.

Dyfyniad MLA

Gershon, Andrea S., et al. Describing and Quantifying Asthma Comorbidty: A Population Study. Public Library of Science, 2012.

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