dr. pettine is a board-certified, and he's a orthopedic surgeon. he's been voted as one of the top 50 spine surgeons in the top 100 spine surgeons to know in america. he's also considered a leader in bio-cellular research and treatment. r dr. pettine, thanks for being here. p so this is very interesting. p you've become a real leader in stem cell therapy. p can you tell us, you know, how did you become such a leader in t this industry? pwell it's a pleasure to be here. p you know, i was born and raised in this area, and i'm a very r busy spine surgeon. p for years, i'd been searching for a way that we could treat p our patients without surgery. p four years ago, i was the first spine surgeon in the united p states to treat a patient's disc with biologics. p what really separates us is experience, research, and data. p you know, being that you're a spine surgeon, you bring a lot t of credibility. p and you are now venturing into an area that a lot of people p but they're very unclear about t so can you explain how r wants to heal itself. p spine is