Singh Stephen B, Harle Ingrid A
Palliative Care Medicine Program, Queen's University, Kingston, Ontario, Canada.
Palliative Care Medicine Program, Queen's University, Kingston, Ontario, Canada.
J Pain Symptom Manage. 2014 Jul;48(1):137-42. doi: 10.1016/j.jpainsymman.2013.09.002. Epub 2013 Dec 2.