Journal of Pain and Symptom Management
Journal of Pain and Symptom Management > 2001 > 21 > 3 > 197-203
Journal of Pain and Symptom Management > 2001 > 21 > 6 > 473-480
Journal of Pain and Symptom Management > 2001 > 22 > 2 > 637-648
Journal of Pain and Symptom Management > 2001 > 22 > 6 > 990-996
Journal of Pain and Symptom Management > 2001 > 22 > 6 > 1027-1034