Title Search [BR 1-1] Big data, big opportunities – systems medicine of human gut microbiome Sunjae LEE (Gwangju Institute of Science and Technology, Korea) [BR 1-2] Understanding of extracellular vesicles in liver diseases: What, why and how? Wonhyo SEO (Ewha Womans University) [BR 1-3] Single-cell approaches to understand human development, aging and diseases Jong-Eun PARK (Korea Advanced Institute of Science and Technology, Korea) [BR 1-4] Liver organoid platforms for disease modeling and drug testing Seung-Woo CHO (Yonsei University, Korea)