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Dyfyniad Arddull ChicagoLacy, Brian E. Making Sense of IBS: A Physician Answers Your Questions About Irritable Bowel Syndrome. Baltimore: Johns Hopkins University Press, 2006.
Dyfyniad MLALacy, Brian E. Making Sense of IBS: A Physician Answers Your Questions About Irritable Bowel Syndrome. Johns Hopkins University Press, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.