There were only two listed in my state so I had to drive over an hour to get to the closest one. Good luck and let me know what you find out.
Also for those who are interested, I came across a more complete set of diagrams for the Interference Fields listed on Tom's site with a fascinating description of frequently overlooked IFs like pierced ears and for ladies, anywhere where we apply make up including finger nails and toe nails. Here is a link for all 10 pages - http://drgooing.com/?LinkServID=756BD508-3473-1494-464144A39486415C&showMeta=0