Professor Martin Birchall is a world-leading academic, renowned surgeon, and pioneer in the field of laryngology. He is a specialist in voice, swallowing and breathing problems as well as coughs and neck lumps. He co-led the first team that used stem cell-based organ transplants and continues to dedicate himself to pioneering life-altering techniques via his active research and presence in the field. He is currently the principal investigator on four clinical trials, including one which is exploring a new way to restore voice functions using the drive from unaffected nerves. He treats vocal cord weakness (palsy) using the latest technology such as laryngeal reinnervation and transcutaneous vocal cord injections and is an expert in managing pharyngeal pouches (Zenker's diverticula) using techniques including lasers and transnasal owsophagoscopy. He is a supporter and medical advisor to a number of charities including the National Association of Laryngectomee Clubs, Shout Against Cancer and Youth Against Crime.