PT - JOURNAL ARTICLE AU - GutiƩrrez-Arias, Ruvistay E TI - The authors respond: AID - 10.4187/respcare.09366 DP - 2021 Sep 01 TA - Respiratory Care PG - 1504--1504 VI - 66 IP - 9 4099 - http://rc.rcjournal.com/content/66/9/1504.short 4100 - http://rc.rcjournal.com/content/66/9/1504.full