Dr. Yuichiro Yamashiro is Professor of Probiotics Research Laboratory of Juntendo University Graduate School of Medicine, Tokyo, Japan (the former Professor & Chairman of Pediatrics and Adolescent Medicine at the same School of Medicine and moved to the current chair after retirement in 2007). Prof. Yamashiro graduated from Juntendo University School of Medicine with an MD in 1967 and PhD in 1972. After internship and residency in pediatrics,faculty of Juntendo University School of Medicine where he rose to the rank of Professor and Chairman by 1997. Over the past two decades,Hepatology and Nutrition including probiotics. Prof. Yamashiro has been very active in many national and international societies that foster excellence in pediatric research and patient care. Hehad served as president of .Japanese Society for Pediatric Gastroenterology,vice-president of Japan Pediatric Society. In addition he had served on the council of many distinguished scientific societies,Pediatric Allergy and Clinical Immunology,Mucosal Immunology,and The Japanese Society for Breast Feeding Research.