Clinical Significance of Cough Peak Flow and Its Non-Contact Measurement via Cough Sounds: A Narrative Review. - Umayahara, Yasutaka; Soh, Zu; Sekikawa, Kiyokazu; Kawae, Toshihiro; Otsuka, Akira; Tsuji, Toshio (Applied Sciences (2076-3417), 2020)