1. Proteolytic and lipolytic deficiency of the exocrine pancreas;Townes;J. Pediatr.,1969
2. Trypsinogen deficiency and other proteolytic deficiency diseases;Townes,1972
3. Holt's diseases of infancy and childhood,1940
4. Diagnosis of fibrocystic disease of the pancreas and partial pancreatic insufficiency;Shwachman,1956
5. Clinical evaluation of abnormal enzyme content of the pancreatic juice of children;McDougall;Pediatrics,1950