PubMed · 2008 · 51 citations · 16 references
In carriers of the CC-genotype, BTH and genotyping correlate perfectly, and the genetic test provides an unambiguous result. In BTH-positive individuals with a negative genetic test there is good reason to suspect secondary causes of lactase deficiency.
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BREATH HYDROGEN AS A DIAGNOSTIC METHOD FOR HYPOLACTASIA
Geoffrey Metz, T. B. Peters, DavidJ.A. Jenkins et al. · The Lancet · 1975 · 197 citations
ISOLATED INTESTINAL LACTASE DEFICIENCY IN THE ADULT
Salvatore Auricchio, Max Landolt, A. Rubino et al. · The Lancet · 1963 · 189 citations