J. A. Walker-SmithBooksPerspectives of Pediatric Inflammatory Bowel DiseasePaediatric gastroenterologyPractical Pediatric GastroenterologyInflammatory Bowel DiseasesPediatric gastrointestinal diseaseDiarrhoea and malnutrition in childhoodPractical Paediatric GastroenterologyGastrointestinal food allergyAuthor data: Open Library