Department of Internal Medicine, McLaren Health Care, Flint, MI, USA; Michigan State University, Flint, Michigan, United States of America

King Fahad Hospital, Rabigh Medical College, King Abdulaziz University, Jeddah, Saudi Arabia

Department of Paediatrics and Child Health, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria.

Department of Otolaryngology-Head and Neck Surgery, King Faisal Hospital, Taif City, Saudi Arabia

Palliative Medical Unit, Grantham Hospital, Hong Kong, China

St. George’s University, West Indies, Grenada, USA

Department of Orthopaedics and Sports Medicine, Harborview Medical Center, Seattle, Washington, USA

Department of Urology, General Hospital of Rethymnon, Crete, Greece

Department of Chiropractic and Physiotherapy, New York Medical Group, Hong Kong, Hong Kong

Duke Cancer Institute, Durham, NC, USA

Orthopaedic Department, Lausanne University Hospital, Lausanne, Switzerland

Azienda USL di Ferrara, Delta Hospital, Ferrara, Italy

Department of Urology, Medical School of São José do Rio Preto, São Jose Rio Preto, Brazil

Department of Hematology/Oncology, Samuel Oschin Cancer Center, Los Angeles, CA, USA

Assistant professor, Department of Thoracic and Cardiovascular Surgery, Haeundae Paik Hospital, Inje University College of Medicine, Seoul, Korea

Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of British Columbia, Vancouver, BC, Canada

Department of Medical Oncology, University of Kansas, Kansas City, KS, USA

Department of Oncosurgery, Pushpadi cancer care centre, Kota, Rajasthan, India

Department of Anesthesiology, Army Medical University, Chongqing, China

Instituto de Ensino e Pesquisa do Hospital Sírio Libanês (IEP/HSL), São Paulo, Brazil

Department of Pathology, SUNY Upstate Medical University, Syracuse, New York, USA

Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, N.T., Hong Kong, China

Nomura Orthopaedic Clinic, Yamaguchi, Japan

Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China

Department of Cardiac, Thoracic and Vascular Science, Carlo Poma Hospital, ASST Mantova, Mantova, Italy

Consultant Spine Surgeon, Sathe Nursing Home, Solapur, Maharashtra, India

Department of Neurosurgery, University of Greifswald, Greifswald, Germany

Department of Internal Medicine, Sisters of Charity Hospital, Buffalo, NY, USA

ENT Registrar – East Midland Deanery, UK

Department of Hematology and Oncology, Tartu University Hospital, North Estonia Medical Centre, Estonia

Department of Thoracic Surgery, Kaiser Permanente Northern California, Oakland, CA, USA

Department of General Thoracic Surgery, NTT Medical Center Tokyo, Tokyo, Japan

Department of Radiation Oncology, University Hospital HM Puerta del Sur, Mostoles, Madrid, Spain.