In response to the article; “Salivary IgA as a Surrogate Biomarker for Microbial Infections in Postoperative Patients Receiving Chemo-Radio-Therapy for Head and Neck Cancer. J Lab Physicians. 2023;15(2):264-268” - Topkan, Erkan; Somay, Efsun; Selek, Uğur (Journal of Laboratory Physicians, 2023)