Journal of Pain and Symptom Management
Journal of Pain and Symptom Management > 2001 > 22 > 1 > 591-599
Journal of Pain and Symptom Management > 2001 > 22 > 4 > 851-861
Journal of Pain and Symptom Management > 2001 > 22 > 1 > 591-599
Journal of Pain and Symptom Management > 2001 > 22 > 4 > 851-861