Affiliation: | (1) Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA;(2) Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15261, USA;(3) Center for Automated Learning and Discovery and Language Technology Institute, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA |