Oxford Health is at the top of the table for most people recruited to take part in research studies.
The Trust recruited 1,908 people to 36 studies supported by the National Institute of Health Research (NIHR) Clinical Research Network in the 2016/17 financial year.
During the previous year, they recruited 1,812 people to 29 studies, making them second in the table of 224 NHS organisations which ranks trusts by the number of people recruited.