Answers are grounded in this paper and cite their sources.
Chronic pain is an area of an immense unmet medical need and pharmaceutical companies have been putting a lot of effort into developing new pain treatments. In spite of this, attrition in this area...
No takes yet. Share an insight, caveat, or question.
Chizh et al. (2007) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: