Triana, D.; Saminan, S.; Siregar, M. L.; Mamfaluti, T.; Putra, T. R. I.; Firdausa, S. The Correlation Between Smoking Degree and Gastroesophageal Reflux Disease Using GERDQ: doi.org 10.26538 Tjnpr V5i6.8. TJNPR 2021, 5 (6), 1030-1033.