1. Department of Neurology, Johns Hopkins University, Baltimore, Maryland
2. Department of Neurobiology and the Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia
3. Department of Neurology, University of California, San Francisco, San Francisco
4. Department of Neurology, Washington University in St Louis, St Louis, Missouri
5. Department of Neurology, Northwestern University, Chicago, Illinois
6. Department of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee
7. Department of Neurology, University of Pennsylvania, Philadelphia
8. Department of Neurology, Mayo Clinic, Rochester, Minnesota
9. Department of Neurology, University of Maryland, Baltimore
10. Department of Medicine, Johns Hopkins University, Baltimore, Maryland
11. Department of Medicine, Albany Medical College, Albany, New York
12. Department of Pharmacology and Toxicology, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, Interstitial Lung Disease Center of Excellence, St. Antonius Hospital, Nieuwegein, the Netherlands
13. Department of Medicine, University of Cincinnati, Cincinnati, Ohio