I worked with both Alex Tuggle (who is the son of Theresa Vernon) for 6 months time and with Dr. Wilson for 1 1/2 years.
While I personally disagree with many of the suggestions of Dr. Wilson, they are both great and do have a different twist on how they treat.
Dr. Wilson is the go to guy for nutritional balancing, he worked along side Dr. Paul Eck who was the creator of ARL and was responsible for much of what we now know today about copper toxicity.
Neither Alex, an acupuncturist ,who was trained by his mother (also an acupuncturist) was trained by Dr, Wilson. Naturally, the have more of a chinese medical spin on nutritional balancing.
Please read my older posts if you want more information regarding my experience.