Enlaces de interés National Comprehensive Cancer Network https://www.nccn.org/ American Academy of otolaryngology – head and neck surgery https://www.entnet.org/ International Federation of Head an Neck Oncologic Societies – IFHNOS http://ifhnos.net/index.html European Head and Neck Society – EHNS https://www.ehns.org/site/ American Society of Clinical Oncology – ASCO https://www.asco.org/ American Head and Neck Society – AHNS https://www.ahns.info/