Salivary Biomarkers for Diagnosis and Monitoring of Thyroid Diseases: A Systematic Review of Current Evidence. - Krithika, Chandrasekaran; Sridhar, Chitathoor; Santhanakrishnan, Srijanani; Mahendra, Jaideep; Sankari, Leena; Sivakumar, Tharanikumar (Biomarker Insights, 2026)