KOIRALA , K., B. SINHA, and D. BASKOTA. “A CASE OF TRAUMATIC RETROPHARYNGEAL HEMATOMA NECESSITATING EMERGENCY TRACHEOSTOMY”. Nepalese Journal of ENT Head &Amp; Neck Surgery, vol. 4, no. 2, Jan. 2014, pp. 22-23, https://www.njehns.org.np/index.php/njehns/article/view/111.