Leslie Arnold Turnberg, Baron Turnberg (born 22 March 1934) is a British medical professional and an author of many publications and books related to the medical and health services fields. His experience extends to areas of research in these fields, and maintaining a clinical practice. He has published four books and some 150 articles on medical and scientific research. He has written two books on the history of Israel. ‘Beyond the Balfour Declaration; the 100 Year Quest for Israeli-Palestinian Peace’ was published in 2017 and ‘Mandate; Britain’s Palestinian Burden, 1919-1939’ published May 2021. In 2000, he was made a life peer. He resigned from the Labour group in July 2019 over the party's approach to Brexit and handling of allegations of antisemitism. He rejoined the party in June 2020, but remains unaffiliated. Early life and training Turnberg was born in Manchester to Hyman Turnberg (of Romanian-Jewish origin) and his wife Dolly (born in Manchester to Polish-Jewish parents). He studied medicine at Manchester University from 1952 to 1957, and completed his house posts in North Manchester hospitals, and trained at the Manchester Royal Infirmary and later in London at the Whittington Hospital and University College Hospital. He developed a specialist interest in gastroenterology, lecturing at the Royal Free Hospital at the liver unit developed by Sheila Sherlock. He married in 1967 and spent a year in Dallas, Texas on a research fellowship with , before returning to Manchester as a lecturer in gastroenterology starting 1969. He would remain consultant gastroenterologist in Salford until 1997. Medical career Professor and dean In 1973 Turnberg was appointed professor of medicine at Hope Hospital (now Salford Royal) in Salford, where he developed the site as a teaching hospital by expanding academic interests. Turnberg made contributions to the understanding of the absorption of electrolytes in the small bowel, gastric secretions, and other areas of gastroenterology. In 1983 the role of Dean of University of Manchester medical school rotated to Hope, and as senior professor there Turnberg assumed the position. He was involved with selection and during the three years as dean developed a new curriculum that pioneered problem-based learning. President of the RCP In 1992, on the resignation of Margaret Turner-Warwick as President of the Royal College of Physicians of London, Turnberg was elected as her successor. During his presidency, he improved the involvement of patients in the College's activities, expanded the College's premises in Regent's