Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Standard Protocol Items: Recommendations for Interventional Trials figure. BPI-SF, Brief Pain Inventory—Short Form; CVT, cardiac vagal tone; PGIC, Patient Global Impression of Changes Questionnaire; QST, quantitative sensory testing; VNS, vagal nerve stimulation.
