E. Ilammaran varshan, Dhanraj Ganapathy, L. Keerthi Sasanka. “CONCENTRATION LAPSES DURING LECTURES AMONG DENTAL STUDENTS IN CHENNAI”. Drugs and Cell Therapies in Hematology, vol. 10, no. 3, May 2022, pp. 1381-9, http://www.dcth.org/index.php/journal/article/view/1056.