LMF1 and alkaline phosphatase measurement: In the Serveaux Dancer study, the two other heterozygous carriers of the LMF1 p.Trp464* variant had normal TG concentration; and the 8-month-old proband with the heterozygous LMF1 p.Trp464* variant exhibited severe HTG (1860 mg/dL (21 mmol/L)) on an episode of severe acute gastroenteritis (a condition known to be associated with moderate HTG) without AP.