Life-course smoking trajectories and risk for emphysema in middle age: The CARDIA Lung study

Amanda R. Mathew, Surya P. Bhatt, Laura A. Colangelo, Norrina B. Allen, David R. Jacobs, Reto Auer, Mark T. Dransfield, Brian Hitsman, George R. Washko, Ravi Kalhan^*

^*Corresponding author for this work