1. Pulmonary, Critical Care & Sleep Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
2. Department of Pediatric Respiratory Medicine, Pubin Children Hospital, Shanghai Children Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
3. The Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma, USA
4. Department of Biostatistics, Virginia Commonwealth University, Richmond, VA 23298, USA
5. Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
6. Veterans Affairs Medical Center, Oklahoma City, Oklahoma, USA