In 2019, the World Journal of Gastroenterology (WJG) has published the 9^th issue which containing 10 articles including 1 review, and 9 original articles, contributed by scientists worldwide. Among these comprehensive articles are (1) “Liver stem cells: Plasticity of the liver epithelium”, a Minireviews by Wei-Yu Lu, PhD, Research Fellow, et al from Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, the University of Birmingham, United Kingdom; (2) “Reaction of antibodies to Campylobacter jejuni and cytolethal distending toxin B with tissues and food antigens”, a Basic Study by Aristo Vojdani, MSc, PhD, Doctor, Reader (Associate Professor), Research Scientist, et al from Immunosciences Lab., Inc., United States; and (3) “Targeted puncture of left branch of intrahepatic portal vein in transjugular intrahepatic portosystemic shunt to reduce hepatic encephalopathy”, a Retrospective Study by Jian-Guo Chu, MD, Professor, et al from Department of Radiology, Air Force Medical Center of PLA, China, etc. We invite you to peruse all 10 articles in this issue, as they present the latest research progress/findings and provide insightful comments in gastroenterology and hepatology that will guide basic research and clinical practice in these fields.

This journal is an open-access journal which allows free immediate access to all full-text articles. For details, please visit: Volume 25, Issue 9, March 7, 2019.

Figure 1 The cover of the issue. Editorial board member of World Journal of Gastroenterology, Mohamed Sira, BM, BCh, MD, MSc, Associate Professor, Department of Pediatric Hepatology, National Liver Institute, Menofyia University, Shebin El-koom 32511, Menofyia, Egypt.

We encourage gastroenterologists and hepatologists worldwide to submit manuscripts to the WJG describing their original basic or clinical research findings that are of high academic value and which report new diagnostic techniques or summarize their treatment experiences.