Is there a smoker’s paradox in COVID-19?
Muhammad Shariq Usman, Tariq Jamal Siddiqi, Muhammad Shahzeb Khan, Urvish K Patel, Izza Shahid, Jawad Ahmed, Ankur Kalra, Erin D Michos
BMJ Evidence-Based Medicine Dec 2021, 26 (6) 279-284; DOI: 10.1136/bmjebm-2020-111492