<qa>  What was the IgA-TTG titre measured on?Total IgA was measured on a Behring BN2 nephelometer. IgA-TTG antibodies were evaluated using enzyme-linked immunosorbent assay kits Aesku Diagnostics, Wendelsheim, Germany. An IgA-TTG titre of 15 Uml before 2052014, a new cut off level of 9 Uml from 205-11122014, and then 7 Uml from 12122014 onwards, were regarded as positive as per the manufacturers guidance. IgA-EMA was detected by immunofluorescence on primate oesophagus sections Binding Site, Birmingham, UK. 