APA (7th ed.) Citation

Johnson, D. W., Nettel-Aguirre, A., Bjornson, C. L., & Williamson, J. Duration, course and caregiver burden of croup in children: Two observational cohorts. BMJ Publishing Group.

Chicago Style (17th ed.) Citation

Johnson, David W., Alberto Nettel-Aguirre, Candice Leigh Bjornson, and Janielee Williamson. Duration, Course and Caregiver Burden of Croup in Children: Two Observational Cohorts. BMJ Publishing Group.

MLA (9th ed.) Citation

Johnson, David W., et al. Duration, Course and Caregiver Burden of Croup in Children: Two Observational Cohorts. BMJ Publishing Group.

Warning: These citations may not always be 100% accurate.