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Journal of Pain and Symptom Management > 2012 > 43 > 5 > 842-854
INTERACT-2010 > 258 - 264
Journal of Pain and Symptom Management > 2009 > 38 > 5 > 775-784
Journal of Pain and Symptom Management > 2012 > 43 > 5 > 842-854
INTERACT-2010 > 258 - 264
Journal of Pain and Symptom Management > 2009 > 38 > 5 > 775-784