1. Statistics at Square Two
2. International Association for the Study of Pain.IASP Announces Revised Definition of Pain. July 16 2020.https://www.iasp‐pain.org/PublicationsNews/NewsDetail.aspx?ItemNumber=10475. Accessed May 25 2021
3. The revised International Association for the Study of Pain definition of pain: concepts, challenges, and compromises
4. Does the IASP definition of pain need updating?