1. The Child with Abdominal Pains;Apley, J.,1959
2. Children with recurrent abdominal pain: how do they grow up ?;Apley, J.; Hale, B.;British Medical Journal,1973
3. Leading article. Recurrent abdominal pain;Journal, British Medical,1970
4. A study of abdominal pain in childhood;Conway, D.J.;Great Ormond Street Journal,1951
5. Recidiverende mavesmerter barnealderen. Ugeskrift for;Dahl, L.; Haahr, J.;Laeger,1969