Dr. James Glenn Drewry D.C. is from the state of Virginia. He is the owner of Amsterdam Chiropractic. Dr Drewry has previously practiced in the US and Australia. He has practiced in NL since 2009. Dr Drewry learned AK from Dr Walter Schmitt at Parker University. Wally Schmitt was a protege of Bob Goodheart and the inventor of Injury Recall Technique. Dr Drewry learned extremity adjusting from Dr Mark Charette and Dr Mark Heron at Parker around the same time. He has developed unique ways to combine AK tests with extremity adjustments. Dr Drewry has built a successful all-referral practice in central Amsterdam using and refining the tools and techniques taught now in his seminars.