Editors’ note: Pharmacotherapy for diabetic peripheral neuropathy pain and quality of life: A systematic review

In reference to “Pharmacotherapy for diabetic peripheral neuropathy pain and quality of life: A systematic review,” Parsons et al. relate their concerns about the study’s methodology and conclusions. The authors suggested a possible reporting bias for studies of pregabalin as there were several unpublished studies or studies without results on clinicaltrials.gov that were not included.