Dr. Ro has served on many professional organizations, including the Korean-American Society of Pathology (for which he was chairman from 1996 to 1998), Korean Society of Pathology (for which he was vice-president from 2004-2005), American Society of Clinical Pathologists, College of American Pathologists, International Academy of Pathology and United States and Canadian Academy of Pathology. Dr. Ro has published over 500 papers in the highest quality peer reviewed journals and presented more than 400 abstracts at national and international scientific meetings. He also published one textbook and more than 20 book chapters and teaching manuals. He has served as a guest lecturer in the United States and abroad.