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I have posted this privately a couple of times, but it seems that some
others might be interested in these references:
1. Maki, et. al. "Dental enamel defects in first-degree relatives of
coeliac disease patients" THE LANCET March 30, 1991. Vol. 337 p. 763-4
2. Ballinger, et. al. "Dental enamel defects in coeliac disease"
THE LANCET Jan. 22, 1994. Vol. 343 p. 230-231
I hope this is helpful.
Ron Hoggan