Journal of Pain and Symptom Management
Journal of Pain and Symptom Management > 2010 > 39 > 3 > 605-609
Journal of Pain and Symptom Management > 2013 > 45 > 1 > 63-70.e7
Journal of Pain and Symptom Management > 2014 > 47 > 1 > 1-11
Journal of Pain and Symptom Management > 2015 > 49 > 3 > 637-645