Dr. Shazia Mahreen, Dr. Deepyanti Dubey , Dr Ankita Handa, Dr Kiran Verma, Dr. Gurinder Kaur, Piyush Kumar 2021. A comparison of apical extrusion of debris during root canal preparation using K-File, Neoendo Flex File, WaveOne Gold File and Self Adjusting File- An in vitro study. Drugs and Cell Therapies in Hematology. 10, 3 (Oct. 2021), 412 – 424.