Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ORR W. C.,The prediction of saliva swallowing frequency in humans from estimates of salivary flow rate and the volume of saliva swallowed,Am. J Med,,,2003,18,,"115,109S-113S",https://cir.nii.ac.jp/crid/1570291225704176384,