[1] Univ Verona, Dept Surg, Maxillo Facial Plast Surg Unit, Verona, Italy
[2] Univ London, Practice Ctr Integrated Med & Translat Res, London, England
[3] Royal Free Hosp, Plast Surg, London, England
[4] UCL, London, England
[5] Univ Stellenbosch, Cape Town Cosmet Dermatol Ctr, Div Dermatol, Cent Pk Esplanade, Stellenbosch, South Africa
[6] Univ Witten Herdecke, Witten, Germany
[7] Klin Links vom Rhein, Cologne, Germany
[8] Amsterdam Plast Surg Clin, Amsterdam, Netherlands
[9] Univ Hosp, Burns & Tissue Regenerat Unit, Ghent, Belgium
[10] Univ Coll Hosp, London, England
[11] Univ Hosp Lewisham, London, England
[12] Charing Cross & Royal Brompton Hosp, London, England
[13] Imperial Coll Med, London, England
[14] European Acad Facial Plast Surg, Lubeck, Germany
[15] Koc Univ, Sch Med & Rene Clin, Istanbul, Turkey
[16] Dept Facial Plast & Craniomaxillofacial Surg, Fakih, Lebanon
[17] Spanish Soc Facial Plast Surg Fakih Hosp, Fakih, Lebanon
[18] Univ Cologne, Dept Otolaryngol Head & Neck Surg, Cologne, Germany
[19] Anticlock Clin, Chandigarh, India
[20] Fortis Hosp, Dept Plast Surg, Mohali, India
[21] Univ London St Georges, London, England