Rowen has posted at least two videos of Stefan.

1-Video #1 posted September 20, 2013, Acute Knee Meniscus Injury Rapid Response to Prolozone

Stefan works as a machinist. Stefan is a man that likes hiking and yoga, while doing yoga last week, he heard a pop in his left knee, he has lots of swelling, this is an acute injury (knee meniscus cartilage), he cannot walk normally, he is hobbling due to pain and instability, after just one ozone injection into his knee, Stefan is able to walk normally, his left knee pain is gone

2-Video #2 posted October 14, 2013, Long term follow up to acute knee injury treated with prolozone

Stefan says his knee is doing well. He only feels pain when he is in his car and reaches for the clutch. That makes his knee have pain. He is back today for another ozone injection to his knees.