1. Faculty of Medicine and Surgery, University of Santo Tomas, Manila, Philippines
2. College of Medicine, Our Lady of Fatima University, Valenzuela, Philippines
3. Division of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
4. Department of Medicine, Saint Peter’s University Hospital, New Brunswick, NJ, USA
5. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, The University of Texas Health Science Center at Houston and McGovern Medical School, Houston, TX, USA
6. Department of Medicine, Einstein Medical Center, Philadelphia, PA, USA
7. Sidney Kimmel College of Medicine, Thomas Jefferson University, Philadelphia, PA, USA