Kamii, Yasuhiro, 		Matsui, Hirotoshi, 		Ohgiya, Masahiro, 		Matsuki, Mei, 		Nagoshi, Saki, 		Kohno, Shiho, 		Sato, Akihito, AND 		Ohta, Ken.
" Investigation of COPD patients discharged without home mechanical ventilation after in-hospital use of acute non-invasive ventilation" <em>Medical Research Archives</em> [Online], Volume 5 Number 8 (15 August 2017)