in order to define the gastrointestinal manifestations and small intestinal structure and function in a group of infants with chronic nonspecific diarrhea and hypogammaglobulinemia , we retrospectively identified 55 such patients from a population of 518 children evaluated for chronic diarrhea over a 6-year span ( 10.6 % ) .
C0021270
infants
C0008059
children