These weekends are dedicated to helping you APPLY the information on the DVDs to real patients in your practice (and in the practices of your classmates). So bring cases, even if you don’t think they have an environmental component. If they are “stumpers”, bring them with you.

Click here to download case presentation template

Click here to download environmental exposure questionnaire 06-2018

(To have your patient fill out and bring with you)


The upcoming 2018/19 weekends are:

The class runs from 9- 5pm on Saturday, and 9-3pm-ish on Sunday so people can get to the airport. Bring 2-3 case histories from your practice to present (see above links)!

2018/19 Arizona Weekends

(held in Fountain Hills, AZ) :

March 9 & 10, 2019

June 8 & 9, 2019

September 14 & 15, 2019

December 7 & 8, 2019



Dates in 2020

Check with OAND

 You need to attend 4 weekends to complete the training.

With the exception of the Toronto trainings, all will be held in Fountain Hills, AZ. about 30 minutes from the Phoenix airport.  We have rented a space at the Centerstone Hotel in Fountain Hills (formerly Holiday Inn)[12800 North Saguaro Boulevard, Fountain Hills AZ 85268 – 480-837-6565] for the trainings. Their room rates are consistently the lowest in the area and the best deals for the rooms are found online (those websites have much better bargaining power than I do).  Breakfast and lunch are served


For more information email Dr. Walter Crinnion at:

Or call: 480-236-8970