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RON It is my experience and knowledge of 13 yrs of Sprue that the
    only sure test for sprue is the bowel bi opsy and that the 5
    labs in America that do the gliden blood test each has a litt;e
    different methodology!Call Dr Murrey at the UNIV of IOWA
    @ 319 335 3500 and perhaps he can give you
    better advise.     Bob Meehan  Omaha Nebraska