My father, James Mowbray, who has died aged 94, was an immunopathologist and pioneer in the field of organ transplantation, and contributed a great deal to the understanding of rejection. His research helped to develop treatments that improved outcomes for people undergoing transplants and also came to the aid of women faced with repeated miscarriages.
As a junior doctor James worked in the late 1950s with the renowned professor of medicine Stan Peart during early kidney transplants, and his involvement led him to make a number of useful observations, including, for example, that kidneys were less likely to be rejected if blood transfusions were given before transplantation.