Department of Medicinal Chemistry;
University of Washington;
Seattle;
WA 98195;
United States;
Health Services Research and Development;
VA Puget Sound Health Care System;
Department of Veterans Affairs;
Seattle;
WA 98101;
United States;
Universitatsklinikum Magdeburg AOR;
39120 Magdeburg;
Germany;
Children’s Hospital of Fudan University;
Probiotics; Safety; Saccharomyces boulardii; Helicobacter pylori; Meta-analysis; Adverse reactions; Diarrhea; Lactobacillus rhamnosus; Randomized clinical trials;