PT - JOURNAL ARTICLE AU - Killen H Briones Claudett TI - Influence of F<sub>IO<sub>2</sub></sub> on P<sub>aCO<sub>2</sub></sub> During Noninvasive Ventilation in Patients with COPD: What Will Be Constant Over Time? AID - 10.4187/respcare.03354 DP - 2014 Jul 01 TA - Respiratory Care PG - e104--e105 VI - 59 IP - 7 4099 - http://rc.rcjournal.com/content/59/7/e104.short 4100 - http://rc.rcjournal.com/content/59/7/e104.full