Si, X.-B. et al. 2021. Gastric Juice-Based Genotypic Methods for Diagnosis of Helicobacter pylori Infection and Antibiotic Resistance Testing: A Systematic Review and Meta-analysis. Turkish Journal of Gastroenterology. 32, 1 (Jan. 2021), 53–65. DOI:https://doi.org/10.5152/tjg.2020.20025.