Dr Krol taught Ultrasound Guided Radiofrequency Ablation Procedures for the Hip and Knee Joints at the 5th Interventional Procedures and Regenerative Medicine Workshop for Management of the Chronic Pain Patient on 7 May - 15 June 2021. The online international workshop featured many world experts in pain management and was organised under Prof Jose De Andres' leadership by Academy Fundolor, Multi-Disciplinary Pain Management Department, General University Hospital, Valencia, Spain.