PT - JOURNAL ARTICLE AU - Roberts, Karsten J TI - Enhancing Early Mobility With a Speaking Valve AID - 10.4187/respcare.07671 DP - 2020 Feb 01 TA - Respiratory Care PG - 269--270 VI - 65 IP - 2 4099 - http://rc.rcjournal.com/content/65/2/269.short 4100 - http://rc.rcjournal.com/content/65/2/269.full