1. Saliva, tears, and duodenal contents in cystic fibrosis of pancreas;di Sant'Agnese;Pediatrics,1958
2. Sweat test in cystic fibrosis;Shwachman;Ann. N. Y. Acad. Sci.,1962
3. Relating mucus, calcium and sweat in a new concept of cystic fibrosis;Gibson;Pediatrics,1971
4. Long term study of 105 patients with cystic fibrosis. Studies made over a 5 to 14 year period;Shwachman;Am. J. Dis. Child.,1958
5. Measurement of tear calcium levels;Uotila;Invest. Ophthalmol.,1972