D. Sh , A. ., K. . A. A., A. . Sh. Y., and R. J. A. “Immunological Features of Mixed Saliva in Patients With Gastrointestinal Disease”. INTERNATIONAL JOURNAL OF HEALTH SYSTEMS AND MEDICAL SCIENCES, vol. 1, no. 4, Nov. 2022, pp. 365-9, doi:10.51699/ijhsms.v1i4.293.