Journal of Pain and Symptom Management
Journal of Pain and Symptom Management > 1995 > 10 > 2 > 120-128
Journal of Pain and Symptom Management > 2007 > 33 > 1 > 32-39
Journal of Pain and Symptom Management > 1995 > 10 > 2 > 120-128
Journal of Pain and Symptom Management > 2007 > 33 > 1 > 32-39