asian pacific association for the study of the liver a p e s l was found it in one hundred, and seventy eight is one of the world's leading associations dedicated to the research and treatment of labor diseases. it is the largest scientific institutions that pursue standards, professional m, and researches and improved treatment methods for millions of patients in the labor diseases in the asia pacific region. asian pacific association for the study of the liver a p e s l was founded in one thousand, and seventy eight, is one of the world's leading associations dedicated to the research and treatment of labor diseases. it is the largest scientific stiuated that pursue standards, professionalism and researchers and improved treatment methods for millions of patients with labor diseases in the asia pacific region.