The publisher apologises for the oversight in not including the full list of contributing authors when the article was published.

The full author list is as follows:

Elizabeth C Abbey, Department of Palliative Medicine, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK

Hiba Aga, Head and Neck Department, Nottingham University Hospitals, Nottingham, UK

Reshma Agrawal, Histopathology, University College London Hospitals NHS Trust, London, UK

Derfel ap Dafydd, Radiology, Royal Marsden NHS Foundation Trust, London, UK

Takhar Arunjit, Department of Otolaryngology – Head and Neck Surgery, St George's Hospital NHS Trust, London, UK

Patrick Axon, Department of ENT, Addenbrookes Hospital Cambridge, UK

Eleanor Aynsley, Department of Oncology, James Cook University Hospital, Middlesbrough, UK

Izhar N Bagwan, Histopathology, Royal Surrey County NHS Foundation Trust, Guildford, UK

Arun Batra, Department of Radiology, North Tees University Hospital, Stockton-on-Tees, UK

Donna Begg, Clinical Nursing, University Hospitals Birmingham, Birmingham, UK

Jonathan M Bernstein, Department of Otolaryngology – Head and Neck, Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK

Guy Betts, Adult Histopathology Department, Manchester Royal Infirmary, Manchester, UK

Colin Bicknell, Department of Vascular Surgery, St Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK

Brian Bisase, Department of Oral and Maxillofacial Surgery, Queen Victoria Hospital, East Grinstead, UK

Grainne C Brady, Department of Speech, Voice and Swallowing, Royal Marsden NHS Foundation Trust, London, UK

Peter Brennan, Oral and Maxillofacial, Head and Neck Surgery, Portsmouth Hospitals NHS Trust, Portsmouth, UK

Aina Brunet, Department of Otorhinolaryngology, Head and Neck Surgery, and Head, Neck Thyroid Cancer Unit, Guy's and St Thomas’ NHS Foundation Trust, London, UK

Val Bryant, Patient representative, Sunderland, UK

Linda Cantwell, University of Liverpool School of Health Sciences, Liverpool, UK, and Department of Dietietics, Merseycare NHS Foundation Trust, Liverpool, UK

Ashish Chandra, Department of Cellular Pathology, St Thomas’ Hospital, Guy's and St Thomas’ NHS Foundation Trust, London, UK

Preetha Chengot, Department of Pathology, Leeds Teaching Hospitals, Leeds, UK

Melvin L K Chua, Division of Radiation Oncology, National Cancer Centre, Singapore

Peter Clarke, Department of ENT, Imperial College Healthcare NHS Trust, London, UK

Gemma Clunie, Complex Laryngology/Airways Service, National Centre for Airway Reconstruction,

Imperial College Healthcare NHS Trust, London, UK

Margaret Coffey, Speech and Language Therapy, Imperial College Healthcare NHS Trust, London, UK

Clare Conlon, Department of Anaesthesia, Manchester University Hospitals NHS Foundation Trust, Manchester, UK

David I Conway, School of Medicine, Dentistry, and Nursing, University of Glasgow, Glasgow, Scotland, UK

Florence Cook, Head and Neck Centre, University College London Hospital NHS Foundation Trust, London, UK

Matthew R Cooper, Librarian, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK

Declan Costello, Otolaryngology, Head and Neck Surgery, Wexham Park Hospital, Slough, UK

Ben Cosway, Department of Otolaryngology, James Cook University Hospital, Middlesbrough, UK

Neil J A Cozens, Department of Radiology, Royal Derby Hospital, Derby, UK

Grant Creaney, School of Medicine, Dentistry, and Nursing, University of Glasgow, Glasgow, Scotland, UK

Gahir K Daljit, Clinical Oncology, University Hospital of North Midlands NHS Trust, Stoke-on-Trent, UK

Stephen Damato, Department of Cellular Pathology, John Radcliffe Hospital, Oxford, UK

Joe Davies, Department of Oncology, Poole Hospital, Poole, UK

Katharine S Davies, Department of Otolaryngology, Head and Neck Surgery, Aintree Hospital, Liverpool University Hospitals Trust, Liverpool, UK

Alina D Dragan, Radiology Department, Royal Marsden Hospital, London, UK

Yong Du, Department of Nuclear Medicine and PETCT, Royal Marsden NHS Foundation Trust, Sutton, UK

Mark R D Edmond, Department of Otolaryngology, Head and Neck Surgery, Poole Hospital, Poole, UK

Stefano Fedele, Department of Oral Medicine, University College London Eastman Dental Institute, London, UK

Harriet Finze, Physiotherapy, Churchill Hospital, Oxford, UK

Jason C Fleming, Liverpool Head and Neck Centre, Liverpool University Hospitals NHS Foundation Trust/University of Liverpool, Liverpool, UK

Bernadette H Foran, Weston Park Cancer Centre, Sheffield, UK

Beth Fordham, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK

Mohammed M A S Foridi, Clinical Pharmacy, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK

Lesley Freeman, Department of Nutrition and Dietetics, Sunderland Royal Hospital, Tyneside and Sunderland NHS Foundation Trust, Sunderland, UK

Katherine E Frew, Palliative Medicine, Wansbeck General Hospital, Northumbria Healthcare NHS Foundation Trust, Ashington, UK

Pallavi Gaitonde, Restorative Dentistry, Castle Hill Hospital, Hull and East Ridings NHS Trust, Cottingham, UK

Victoria Gallyer, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK

Fraser W Gibb, Department of Endocrinology, NHS Lothian, Edinburgh, Scotland, UK

Sinclair M Gore, Blenheim Head and Neck Unit, Churchill Hospital, Oxford, UK

Mark Gormley, MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK

Roganie Govender, Head and Neck Academic Centre and Research, University College London, London, UK

J Greedy, Head and Neck Cancer, Beacon Cancer Centre, Musgrove Park Hospital, Taunton, UK

Teresa Guerrero Urbano, Department of Clinical Oncology, Guy's and St Thomas’ NHS Foundation Trust, London, UK

Dorothy Gujral, Department of Clinical Oncology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK

David W Hamilton, Department of ENT, Freeman Hospital, Newcastle upon Tyne, UK

John C Hardman, Department of Head and Neck Surgery, Royal Marsden Hospital, London, UK

Kevin Harrington, Department of Oncology, Royal Marsden NHS Foundation Trust, London, UK

Samantha Holmes, Speech and Language Therapy, Oxford University Hospitals NHS Trust, Oxford, UK

Jarrod J Homer, Manchester Head and Neck Centre, Manchester Royal Infirmary, Manchester University NHS Foundation Trust, Manchester, UK

Deborah Howland, Department of Nutrition and Dietetics, Torbay Hospital, Torbay and South Devon NHS Foundation Trust, Torquay, UK

Gerald Humphris, Medical School, University of St Andrews, St Andrews, Scotland, UK

Keith D Hunter, Academic Unit of Oral Medicine and Pathology, School of Clinical Dentistry, Sheffield, UK

Kate Ingarfield, Centre for Trials Research, Neuadd Meirionnydd, Cardiff, Wales, UK

Richard Irving, Department of Otolaryngology, Queen Elizabeth Hospital NHS Foundation Trust, Birmingham, UK, and Department of Otolaryngology, Diana, Princess of Wales Hospital for Children, Birmingham, UK

Kristina Isand, Department of Endocrinology, Oxford University Hospital, Oxford, UK

Yatin Jain, Department of Radiology, Christie Hospital NHS Foundation Trust, Manchester, UK

Sachin Jauhar, Restorative Dentistry, Glasgow Dental Hospital, Glasgow, Scotland, UK

Sarra Jawad, Restorative Dentistry, Guy's Hospital, London, UK

Glyndwr W Jenkins, Department of Maxillofacial Surgery, Freeman Hospital, Newcastle upon Tyne Hospitals Trust, Newcastle upon Tyne, UK

Anastasios Kanatas, Department of Head and Neck Surgery, St James Institute of Oncology, Leeds Dental Institute, Leeds General Infirmary and University of Leeds, Leeds, UK

Stephen Keohane, Department of Dermatology, Portsmouth Hospitals NHS Trust, Portsmouth, UK

Cyrus J Kerawala, Head and Neck Unit, Royal Marsden Hospital, London, UK

William Keys, Restorative Dentistry, Aberdeen Dental Institute, Aberdeen, Scotland, UK (

Emma V King, Department of Otolaryngology, Head and Neck Surgery, Poole Hospital, Poole, UK

Anthony Kong, Comprehensive Cancer Centre, Guy's Campus, King's College London, London, UK, and Department of Clinical Oncology, Guy's and St Thomas’ NHS Foundation Trust, London, UK

Fiona Lalloo, Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University Foundation Trust, Manchester, UK

Kirsten Laws, Department of Oncology, Aberdeen Royal Infirmary, Aberdeen, Scotland, UK

Samuel C Leong, Liverpool Head and Neck Centre, Liverpool University Hospitals NHS Foundation Trust/University of Liverpool, Liverpool, UK

Shane Lester, Department of Otolaryngology, James Cook University Hospital, Middlesbrough, UK

Miles Levy, Department of Endocrinology, University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, UK

Ken Lingley, Carer representative, UK

Gitta Madani, Department of Radiology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK

Navin Mani, Manchester Head and Neck Centre, Manchester Royal Infirmary, Manchester, UK

Paolo L Matteucci, Department of Plastic and Reconstructive Surgery, Castle Hill Hospital, Cottingham, UK

Catriona R Mayland, Department of Palliative Medicine, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK, and Yorkshire Cancer Research, Harrogate, UK

James McCaul, Department of Maxillofacial/Head and Neck Surgery, Queen Elizabeth University Hospital, Glasgow, Scotland, UK

Lorna K McCaul, Restorative Dentistry, Glasgow Dental Hospital, Glasgow, Scotland, UK

Pádraig McDonnell, Clinical Psychology, Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK

Andrew McPartlin, Department of Clinical Oncology, Christie Hospital, Manchester, UK

Valeria Mercadante, Department of Oral Medicine, University College London Eastman Dental Institute, London, UK

Zoe Merchant, Occupational Therapy and Prehab4Cancer Programme, Christie NHS Foundation Trust, Manchester, UK

Radu Mihai, Department of Endocrine Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK

Mufaddal T Moonim, Histopathology, Imperial College NHS Healthcare Trust, London, UK

John Moore, Division for Anaesthesia, Critical Care and Peri-operative Medicine, Manchester University Hospitals NHS Foundation Trust, Manchester, UK

Paul Nankivell, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK, and Department of Otolaryngology, University Hospital Birmingham, Birmingham, UK

Sonali Natu, Histopathology, University Hospital of North Tees and Hartlepool NHS Foundation Trust, Hartlepool, UK

A Nelson, Macmillan Head and Neck, Northwick Park Hospital, London North West University Healthcare NHS Trust, Harrow, UK

Pablo Nenclares, Oncology, Royal Marsden NHS Foundation Trust, London, UK

Kate Newbold, Oncology, Royal Marsden Hospital, London, UK

Carrie Newland, Oral and Maxillofacial Surgery, Royal Surrey NHS Foundation Trust, Guildford, UK, and School of Medicine, University of Surrey, Guildford, UK

Ailsa J Nicol, Restorative Dentistry, Newcastle Dental Hospital, Newcastle upon Tyne, UK

Iain J Nixon, ENT Department, NHS Lothian, Edinburgh, Scotland, UK

Rupert Obholzer, Department of ENT, Guy's Hospital, London, UK

James T O'Hara, Department of ENT, Freeman Hospital, Newcastle upon Tyne, UK

S Orr, Nursing, Colchester Hospital, East Suffolk and North Essex Foundation Trust, Colchester, UK

Vinidh Paleri, Head and Neck Unit, Royal Marsden Hospital, London, UK

James Palmer, Department of Oncology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK

Rachel S Parry, Palliative Medicine, Wirral University Teaching Hospitals NHS Trust, Birkenhead, UK

Claire Paterson, Beatson West of Scotland Cancer Centre, Glasgow, Scotland, UK

Gillian Patterson, Patient representative, UK

Joanne M Patterson, Liverpool Head and Neck Centre, School of Health Sciences, University of Liverpool, Liverpool, UK

Miranda Payne, Medical Oncology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK

L Pearson, Workforce and Education, Worcester Acute Hospitals NHS Trust, Worcester, UK

David N Poller, Department of Pathology, Queen Alexandra Hospital, Portsmouth, UK

Jonathan Pollock, Department of Plastic Surgery, Nottingham University Hospitals, Nottingham, UK

Stephen Ross Porter, Department of Oral Medicine, University College London Eastman Dental Institute, London, UK

Matthew Potter, Department of Plastic and Reconstructive Surgery, John Radcliffe Hospital, Oxford, UK

Robin J D Prestwich, Leeds Cancer Centre, St James's University Hospital, Leeds, UK

Ruth Price, Department of Physiotherapy, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK

Mani Ragbir, Department of Plastic and Reconstructive Surgery, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK

Meena S Ranka, Restorative Dentistry, Luton and Dunstable University Hospital, Luton, UK

Max Robinson, Department of Cellular Pathology, Royal Victoria Infirmary, Newcastle upon Tyne, UK

Justin W G Roe, Department of Speech, Voice and Swallowing, Royal Marsden NHS Foundation Trust,

London, UK, and Complex Laryngology/Airways Service, National Centre for Airway Reconstruction,

Imperial College Healthcare NHS Trust, London, UK

Tom Roques, Department of Oncology, Norfolk and Norwich University Hospital, Norwich, UK

Aleix Rovira, Department of Otorhinolaryngology, Head and Neck Surgery, and Head, Neck Thyroid Cancer Unit, Guy's and St Thomas’ NHS Foundation Trust, London, UK

Sajid Sainuddin, Department of Oral and Maxillofacial Surgery, Manchester University NHS Foundation Trust, Manchester, UK

I J Salmon, Macmillan Head and Neck, Bedford Hospital NHS Trust, Bedford, UK

Ann Sandison, Department of Head and Neck/Oral Pathology, Guy's and St Thomas’ NHS Foundation Trust, London, UK

Andy Scarsbrook, Leeds Institute of Health Research, University of Leeds, Leeds, UK, and Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK

Andrew G Schache, University of Liverpool Cancer Research Centre, Liverpool, UK

A Scott, Macmillan Head and Neck, Mount Vernon Cancer Centre, East and North Hertfordshire NHS Trust, Northwood, UK

Diane Sellstrom, Department of Voice and Swallowing, Newcastle upon Tyne Hospitals NHS Trust, Newcastle upon Tyne, UK

Cherith J Semple, School of Nursing, Ulster University, Belfast, UK

Jagrit Shah, Radiology, Nottingham University Hospitals NHS Foundation Trust, Nottingham, UK

Praveen Sharma, Restorative Dentistry, University of Birmingham School of Dentistry, Birmingham, UK

Richard J Shaw, Oral and Maxillofacial/Head and Neck Surgery, University of Liverpool, Liverpool, UK

Somiah Siddiq, Head and Neck Department, University Hospitals Birmingham, Birmingham, UK

Priyamal Silva, Head and Neck Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK

Ricard Simo, Department of Otorhinolaryngology, Head and Neck Surgery, and Head, Neck Thyroid Cancer Unit, Guy's and St Thomas’ NHS Foundation Trust, London, UK

Rabin P Singh, Maxillofacial, Head and Neck Surgery, University Hospital Southampton NHS Foundation Trust, Southampton, UK

Maria Smith, Macmillan Head and Neck, Queen Elizabeth University Hospital, NHS Greater Glasgow and Clyde, Glasgow, Scotland, UK

Rebekah Smith, Department of Nutrition and Dietetics, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK

Toby Oliver Smith, Warwick Clinical Trials Unit, University of Warwick, Coventry, UK, and School of Health Sciences, University of East Anglia, Norwich, UK

Sanjai Sood, Otolaryngology, Head and Neck Surgery, Bradford Teaching Hospitals, Bradford, UK

Francis W Stafford, Otolaryngology – Head and Neck Surgery, Sunderland Royal Hospital, Sunderland, UK

Neil Steven, Medical Oncology, University Hospitals Birmingham, Birmingham, UK

Kay Stewart, Department of Palliative Medicine, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK

Lisa Stoner, Physiotherapy, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK

Steve Sweeney, Patient representative, Manchester, UK

Andrew Sykes, Department of Clinical Oncology, Christie Hospital, Manchester, UK

Carly L Taylor, Restorative Dentistry, University Dental Hospital of Manchester, Manchester, UK

Selvam Thavaraj, Head and Neck Pathology, Guy's Hospital, London, UK

David J Thomson, Department of Oncology, Christie NHS Foundation Trust, Manchester, UK, and Division of Cancer Sciences, University of Manchester, Manchester, UK

Jane Thornton, Department of Speech and Language Therapy, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK

Neil S Tolley, ENT Surgery, Imperial College NHS Healthcare Trust, London, UK

Nancy Turnbull, Melanoma Focus, Cambridge, UK

Sriram Vaidyanathan, Department of Nuclear Medicine, St James's University Hospital, Leeds, UK

Leandros Vassiliou, Oral and Maxillofacial Surgery, Royal Blackburn Hospital, Blackburn, UK

John Waas, Department of Endocrinology, Oxford University Hospital, Oxford, UK

Kelly Wade-McBane, Department of Nutrition and Dietetics, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK

Donna Wakefield, Department of Palliative Medicine, University Hospital of North Tees, North Tees and Hartlepool NHS Foundation Trust, Stockton-on-Tees, UK

Amy Ward, Department of Oncology, Barking, Havering and Redbridge University Hospitals NHS Trust, Romford, UK

Laura Warner, Department of Otolaryngology, Head and Neck Surgery, Freeman Hospital, Newcastle upon Tyne Hospitals Trust, Newcastle upon Tyne, UK

Laura-Jayne Watson, Speech and Language Therapy, South Tyneside and Sunderland NHS Foundation Trust, Sunderland, UK

H Watts, Macmillan Head and Neck, Northampton General Hospital NHS Trust, Northampton, UK

Christina Wilson, Beatson West of Scotland Cancer Centre, Glasgow, Scotland, UK

Stuart C Winter, Department of Otolaryngology, Head and Neck Surgery, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK, and Blenheim Head and Neck Unit, Churchill

Hospital, Oxford, UK

Winson Wong, Department of Otolaryngology, Head and Neck Surgery, Hull University Teaching Hospitals, Hull, UK

Chui-Yan Yip, Clinical Pharmacy, Wheatfield's Hospice and St Gemma's Hospice, Leeds, UK

Kent Yip, Clinical Oncology, Ipswich Hospital, East Suffolk and North Essex NHS Foundation Trust, Ipswich, UK

This article has been updated to include all authors.