He also helped develop strategies for treatments of throat cancer to aid the choice between surgery and radiotherapy .
Other surgical innovations developed by Negus included an operating table ( known as the King 's College table ) , and a speaking valve for use in tracheotomy tubes .
Negus also helped develop strategies for treatments of throat cancer to aid the choice between surgery and radiotherapy .
Other surgical innovations developed by Negus included an operating table ( known as the King 's College table ) , and a speaking valve for use in tracheotomy tubes .