R Shyagali, Tarulatha, Tanvee Tiwari, Abhishek Gupta, Rishi Joshi, Anil Tiwari, Pushp Raj, and Ruchi Jha. 2019. “Delaying Premolar Extraction for Conservation of Anchorage: A Prospective Case Control Study”. Orthodontic Journal of Nepal 9 (2):47-51. https://doi.org/10.3126/ojn.v9i2.28414.