This is the book Jon quotes, “Pain is a symphony…”
The International Association for the Study of Pain’s revised definition of pain is available here.
If you’d like to read more about ‘nocebo’ i.e. the non-pharmacological adverse effects of an intervention, have a look at this article.
Jon is the author of the Pain and analgesia chapter in the 2nd edition of the ABC of Prehospital Medicine, to be published soon!