[1] Sydney Head & Neck Canc Inst, Dept Head & Neck Surg, Surg Chris O Brien Lifehouse, 119-143 Missenden Rd, Camperdown, NSW 2050, Australia
[2] Westmead Ctr Oral Hlth, Dept Oral Restorat Sci, Corner Hawkesbury Rd,Darcy Rd, Westmead, NSW 2145, Australia
[3] Univ Sydney, Fac Med & Hlth, Sch Dent, 2 Chalmers St, Surry Hills, NSW, Australia
[4] Univ Sydney, Sydney Med Sch, Fac Med & Hlth, Anderson Stuart Bldg, Camperdown, NSW 2050, Australia
[5] Royal Prince Alfred Inst Acad Surg, Sydney Local Hlth Dist, Camperdown, NSW 2050, Australia
[6] Royal Prince Alfred Hosp, Dept Plast Surg, 50 Missenden Rd, Camperdown, NSW 2050, Australia
[7] Macquarie Univ, Fac Med & Hlth Sci, Sydney, NSW, Australia