The incidence of primary hypolactasia amongst native Irish
- Cite this article as:
- Fielding, J.F., Harrington, M.G. & Fottrell, P.F. I.J.M.S. (1981) 150: 276. doi:10.1007/BF02938254
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Primary hypolactasia is rare amongst Native Irish, occurring in at most 4% of the healthy adult population. Routine screening for primary hypolactasia as a cause of gastrointestinal symptoms in Irishmen is unjustified.