1 University of Illinois Chicago College of Medicine, Chicago, IL, USA.
2 Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois Chicago College of Medicine, Chicago, IL, USA.
3 Department of Dermatology, University of Illinois Chicago College of Medicine, Chicago, IL, USA.
4 Division of Rheumatology, Department of Medicine, University of Illinois Chicago College of Medicine, Chicago, IL, USA.