Dr. Ryu is an Assistant Professor of Medicine in the Section of Pulmonary, Critical Care, and Sleep Medicine at Yale. He received his BS at Emory University, MPH at Dartmouth College, and MD at New York Medical College. After completing his internal medicine residency, including a year as chief resident at SUNY Upstate Medical University, he came to Yale for his Pulmonary Critical Care Fellowship. During his time as a clinical fellow, he joined the laboratory of Dr. Erica Herzog, and under her mentorship he conducted translational research in Idiopathic Pulmonary Fibrosis (IPF) and Sarcoidosis. His research involves the study of extracellular mitochondrial DNA as biomarker for survival in IPF and clinical phenotypes in Sarcoidosis. Related to this, he is exploring the pathogenic mechanisms by which mitochondrial DNA contributes to disease pathology in interstitial lung disease.