9Aitken ME, Hammond DC. Double-muscle flap repair of the tethered tracheostomy Scar. Ann Plast Surg, 2002, 49:328-332.
10Lee UJ, Goh EK, Wang SG, et al. Closure of large tracheocutaneous fistula using turn-over hinge flap and V-Y advancement flap. J Laryngol Otol, 2002, 116:627-629.