WALKER, W. ALLAN 312.834 GUT Gut interactions with brain and environment in children : First International Symposium on Pediatric Neurogastroenterology Capri, Italy , September 18-20, 1997 I [ ESPGHAN ed . John A. Walker-Smith ; NASPGN ed . W. Allan Walker ] . - [ Philadelphia ; New York] : Lippincott-Raven Publ., 1997 . - [ 4 ] , 48 s. ; 28 cm. - ( Journal of Pediatric Gastroenterology and Bprition , ISSN 0277-2116; vol . 25 , suppl . 1)