1. Gastrointestinal complications of cystic fibrosis;Littlewood, J.M.;J R Soc Med; 85 (suppl 19,1992
2. Clinical monitoring of steatorrhoea in cystic fibrosis;Walters, M.P.; Kelleher, J.; Littlewood, J.M.;Arch Dis Child,1990
3. Fecal fat and nitrogen in healthy children and in children with malabsorption and maldigestion;Schmerling, D.H.; Forrer, J.C.W.; Prader, A.;Pediatnics,1970
4. Markers for faecal fat estimation in monitoring steatorrhoea in cystic fibrosis;Gilbert, J.; Kelleher, J.; Walters, M.P.; Littlewood, J.M.;Gut,1988
5. Abdominal pain in cystic fibrosis;Littlewood, J.M.;J R Soc Med,1995