Gijo John, Tejpal Singh, Ahtesham Aleem and Niyati Singh Thakur (2015) “Non surgical endodontic treatment of cutaneous extraoral sinus tract: Report of 2 cases ”, Asian Pacific Journal of Health Sciences, 2(4(s), pp. 11–14. doi: 10.21276/apjhs.2015.2.2s.2.