A new study by Prof. Kusuki Nishioka, MD & PhD (Professor of Medicine, Director & Chairman Institute of Medical Science, Tokyo Medical University) concluded that the Japanese version of the new American College of Rheumatology fibromyalgia criteria "have high reliability and validity, and are useful for assessing fibromyalgia among Japanese chronic pain populations."

You can read more about the criteria here. Browse NDB work on the criteria in our research library.