Cite
MLA Citation
Shannon L Walker et al.. “Awareness of Risk Factors among Persons at Risk for Lung Cancer, Chronic Obstructive Pulmonary Disease and Sleep Apnea: A Canadian Population-Based Study.” Canadian respiratory journal, vol. 17, no. 6, 2010, pp. 287–294. http://access.bl.uk/ark:/81055/vdc_100173103321.0x000028