1. Division of Pulmonary and Critical Care MedicineDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMDUSA
2. Department of Radiology and Radiological ScienceJohns Hopkins University School of MedicineBaltimoreMDUSA
3. Division of CardiologyDepartment of MedicineMedical University of South CarolinaCharlestonSCUSA
4. Division of CardiologyDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMDUSA
5. Brown University Warren Alpert Medical SchoolProvidenceRIUSA
6. First Department of MedicineHokkaido University HospitalSapporoJapan