論文（英文）
Ikeda T, Yamauchi Y, Uchida K, Oba K, Nagase T, Yamada Y. Reference value for expiratory time constant calculated from the maximal expiratory flow-volume curve. BMC Pulm Med. 2019 Nov 11;19(1):208.
Ikeda T, Yamauchi Y, Uchida K, Oba K, Nagase T, Yamada Y. Reference value for expiratory time constant calculated from the maximal expiratory flow-volume curve. BMC Pulm Med. 2019 Nov 11;19(1):208.