The Prevalence of Gastroesophageal Reflux Disease (GERD) in H. pylori-Positive and -Negative Patients.

Introduction: The presence of Helicobacter pylori (H. pylori) infection can influence gastric acid production. While both gastroesophageal reflux disease (GERD) and H.

Knowledge and Attitudes of Medical Students toward COVID-19 Vaccine in Saudi Arabia.

Medical students are the future caregivers of communities, and therefore it is important to rectify their misconceptions about the COVID-19 vaccine. We aimed to explore the knowledge and attitudes among medical students toward the COVID-19 vaccine in Saudi Arabia and to compare the level of knowledge between preclinical and clinical years. This epidemiological cross-sectional study of 1445 (47.