Webb Jason A, Kamal Arif H
Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA.
Department of Medicine, Duke University Medical Center; Duke Cancer Institute, Duke Center for Learning Health Care, Durham, North Carolina, USA.
J Pain Symptom Manage. 2014 Jul;48(1):e1-2. doi: 10.1016/j.jpainsymman.2014.05.002. Epub 2014 May 23.