A statement by Professor John Walker-Smith

I deny the allegation that there was systematic bias in the pattern of referral for the children in the 1998 Lancet paper. No children were invited to participate in the study. Upon review of the Centre for Paediatric Gastroenterology, Royal Free Hospital, work book entitled “Biopsies VI 4/9/95 to 21/7/97”, we confirm that the children who were reported in the Lancet paper of 1998 were the first 12 children consecutively referred to the...