PT - JOURNAL ARTICLE AU - Margaret, N. TI - 519. The Relationship Between the Sleep Quality and Perception of Pain Intensity Among Elderly Patients Undergoing Orthopaedic Surgeries AID - 10.1136/rapm-00115550-200809001-00348 DP - 2008 Sep 01 TA - Regional Anesthesia & Pain Medicine PG - e180--e180 VI - 33 IP - Suppl 1 4099 - http://rapm.bmj.com/content/33/Suppl_1/e180.1.short 4100 - http://rapm.bmj.com/content/33/Suppl_1/e180.1.full SO - Reg Anesth Pain Med2008 Sep 01; 33