Authors’ affiliations
1 Department of Respiratory Medicine, Ohara Healthcare
Foundation, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama
710-8602, Japan
2 Department of Critical Care Medicine, Ohara
Healthcare Foundation, Kurashiki Central Hospital, 1-1-1 Miwa,
Kurashiki, Okayama 710-8602, Japan