Huw Llewelyn,
author
Kettering General Hospital, Kettering, Northamptonshire, UK
Hock Aun Ang,
author
Honorary Senior Lecturer in Medicine, Penang Medical College, Consultant Physician and Endocrinologist, Seberange Jaya Hospital, Penang, Malaysia in Medicine, Penang Medical College, Penang, Malaysia
Keir E Lewis,
author
Senior Lecturer in Respiratory Medicine, Clinical School, Swansea University, Honorary Consultant Physician, Carmarthenshire NHS Trust, UK
Anees Al-Abdullah,
author
General Practitioner, Kidwelly, Camarthenshire, UK