I do not have access to the full papers but from a wider perspective this is intriguing.
Firstly those with cystic fibrosis may commonly be iodine deficient, presumably due to uptake issues. http://www.ncbi.nlm.nih.gov/pubmed/23107148(Low selenium may be an issue too it has been suggested - selenium is important to the metabolism of iodine)
and in 1956 an salivary iodine based test was proposed for cystic fibrosis of the pancreas.
All of which raises all sorts of questions and possibilities, and particularly so given iodine's association with the mucal membranes /systems / sweating etc
A SCREENING TEST FOR CYSTIC FIBROSIS OF THE PANCREAS USING ANALYSIS OF SALIVA
Wayne Hart,
Mansour J. Naime
+ Author Affiliations
Children's Mercy Hospital, Kansas City, Missouri
The Department of Pediatrics, University of Kansas School of Medicine
Abstract
A screening test for cystic fibrosis of the pancreas utilizing analysis of saliva for iodine after oral administration of Lipiodol® is presented. Tables provide the results obtained from testing 11 children who have cystic fibrosis of the pancreas and 30 children who have no evidence of this disease. It is indicated that the test can be easily and rapidly performed.