Portal Hypertension 门脉高压症 the First Affiliated Hospital, College of Medicine Zhejiang University 浙江大学医学院附属第一医院 Prof Zhang min MD 张珉Portal Hypertension 门脉高压症 the First Affiliated Hospital, College of Medicine, Zhejiang University 浙江大学医学院附属第一医院 Prof. Zhang Min, MD 张 珉