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Books by Dr Jason Armstrong

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2 books found
Street Fighting Statistics With Medical Outcomes Linked To Karate & Bunkai Selection
Street Fighting Statistics With Medical Outcomes Linked To …
By: B.Sc.(Honours), Msc, Phd, Dr. Jason Armstrong
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Karate Styles: Surprising Links to Shortened Lifespan
Karate Styles: Surprising Links to Shortened Lifespan
By: Dr Jason Armstrong
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