PT - JOURNAL ARTICLE AU - Janice M. Leung AU - Chen Xi Yang AU - Don D. Sin TI - COVID-19 and Nicotine as a Mediator of ACE-2 AID - 10.1183/13993003.01261-2020 DP - 2020 Jan 01 TA - European Respiratory Journal PG - 2001261 4099 - http://erj.ersjournals.com/content/early/2020/04/27/13993003.01261-2020.short 4100 - http://erj.ersjournals.com/content/early/2020/04/27/13993003.01261-2020.full