PT - JOURNAL ARTICLE AU - Carvalho, Paula G TI - Principles and Practice of Sleep Medicine, 4th edition. DP - 2007 Jun 01 TA - Respiratory Care PG - 763--764 VI - 52 IP - 6 4099 - http://rc.rcjournal.com/content/52/6/763.short 4100 - http://rc.rcjournal.com/content/52/6/763.full