[1] Univ Toronto, Temerty Fac Med, Dept Otolaryngol Head & Neck Surg, Div Facial Plast & Reconstruct Surg, Toronto, ON, Canada
[2] Univ Toronto, Dept Otolaryngol Head & Neck Surg, Div Facial Plast & Reconstruct Surg, Temerty Fac Med, 150 Bloor St West,M110, Toronto, ON M5S 2X9, Canada