1.
Helexandra Y, Sabri YS, Anggrainy F. The Relationship Between Smoking Status and Smoking Index Against COVID-19 Disease Course in Treated Patients at Dr. M Djamil General Hospital, Padang. Respir Scie [Internet]. 2022Sep.15 [cited 2026Aug.17];3(1):51-66. Available from: https://www.respiratoryscience.or.id/index.php/journal/article/view/58