Affiliation: | 1.Department of Mechanical Engineering, McCormick School of Engineering, Northwestern University Technological Institute, 2145 Sheridan Road, Evanston, IL, 60201, USA ;2.Theoretical and Applied Mechanics Program, McCormick School of Engineering, Northwestern University Technological Institute, 2145 Sheridan Road, Evanston, IL, 60201, USA ;3.Division of Gastroenterology and Hepatology, Feinberg School of Medicine, Northwestern University, 676 North St. Clair Street, Arkes Suite 2330, Chicago, IL, 60611, USA ; |