APA (7th ed.) Citation

Spahn, J. D., & Covar, R. (2008). Clinical assessment of asthma progression in children and adults. Journal of allergy and clinical immunology, 121(3), 548-557. https://doi.org/10.1016/j.jaci.2008.01.012

Chicago Style (17th ed.) Citation

Spahn, Joseph D., and Ronina Covar. "Clinical Assessment of Asthma Progression in Children and Adults." Journal of Allergy and Clinical Immunology 121, no. 3 (2008): 548-557. https://doi.org/10.1016/j.jaci.2008.01.012.

MLA (9th ed.) Citation

Spahn, Joseph D., and Ronina Covar. "Clinical Assessment of Asthma Progression in Children and Adults." Journal of Allergy and Clinical Immunology, vol. 121, no. 3, 2008, pp. 548-557, https://doi.org/10.1016/j.jaci.2008.01.012.