1. Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, Universitas Airlangga (UNAIR), Surabaya 60132, Indonesia
2. Department of Pulmonology and Respiratory Medicine, Universitas Airlangga Teaching Hospital, Surabaya 60015, Indonesia
3. Pulmonology and Respiratory Medicine of UNAIR (PaRU) Research Center, Universitas Airlangga Teaching Hospital, Surabaya 60015, Indonesia
4. Division of Respiratory Medicine, Department of Internal Medicine, Graduate School of Medicine, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan