1 Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA.
2 Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, Private Practice, Walnut Creek, California, USA.
3 Department of Biomedical Engineering, University of Calgary, Calgary, Canada.
4 Department of Cell Biology and Anatomy, Alberta Children's Hospital Research Institute and McCaig Bone and Joint Institute, Cumming School of Medicine, University of Calgary, Calgary, Canada.
5 Department of Radiology, Alberta Children's Hospital Research Institute and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Canada.