APA (7th ed.) Citation

Scott Weichenthal, Li Bai, Marianne Hatzopoulou, Keith Van Ryswyk, Jeffrey C. Kwong, Michael Jerrett, . . . Hong Chen. (2017). Long-term exposure to ambient ultrafine particles and respiratory disease incidence in in Toronto, Canada: A cohort study. BMC.

Chicago Style (17th ed.) Citation

Scott Weichenthal, et al. Long-term Exposure to Ambient Ultrafine Particles and Respiratory Disease Incidence in in Toronto, Canada: A Cohort Study. BMC, 2017.

MLA (9th ed.) Citation

Scott Weichenthal, et al. Long-term Exposure to Ambient Ultrafine Particles and Respiratory Disease Incidence in in Toronto, Canada: A Cohort Study. BMC, 2017.

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