TY - RPRT TI - Cigarette smoke triggers the expansion of a subpopulation of respiratory epithelial cells that express the SARS-CoV-2 receptor ACE2 AU - Smith, J. C. AU - Sheltzer, J. M. PY - 2020 DO - 10.1101/2020.03.28.013672 UR - https://www.biorxiv.org/content/10.1101/2020.03.28.013672v1 ID - 10.1101/2020.03.28.013672 ER -