Dr Hugh C. Rayner gained a first-class degree in physiology at Cambridge University before qualifying with honours at the London Hospital Medical College in 1981. He was awarded an MD from the University of Leicester for studies on experimental models of kidney disease. After a number of training posts, including a year as clinical fellow in Melbourne Australia, he was appointed as a consultant in renal and general medicine in Birmingham in 1993, teaching renal medicine to undergraduates and trainee doctors.

As part of his studies for the Diploma in Medical Education from Dundee University in 1996, he presented a dissertation on the interpretation of serum creatinine and published a consensus curriculum for undergraduate renal medicine [1]. He retired from clinical nephrology practice in December 2019. 

Dr Mark E. Thomas studied Biological Sciences and Medicine as an undergraduate at Kings College London and Westminster Medical School. After postgraduate training he was a Research Fellow at Washington University Medical School in St Louis, USA for three years, studying models of proteinuric renal disease. This interest continued during Senior Registrar training in Leicester. He has been a Consultant Nephrologist and Physician in Birmingham since 1998. 

 He has had a clinical research interest in acute kidney injury (AKI) for some years, including earlier detection and intervention in AKI. He is chief investigator for the Acute Kidney Outreach to Reduce Deterioration and Death (AKORDD) study, a large pilot study of AKI outreach. He has chaired clinical guideline development groups for AKI, anaemia management in CKD and End of life care for the UK National Institute for Health and Care Excellence (NICE).

Dr David V. Milford commenced basic paediatric training in 1983 and higher paediatric training at Sheffield Children's Hospital in 1986.  He undertook research in the Department of Nephrology, Birmingham Children's Hospital into the epidemiology of diarrhea-associated haemolytic uraemic syndrome resulting in several major publications and a thesis for Doctor of Medicine. He was appointed consultant nephrologist at Birmingham Children's Hospital in 1992.   His interests include hypertension, acute kidney injury and renal transplantation.