The Mexico City Prospective Study (IMAGE) Nightingale Health Caption The Mexico City Prospective Study was established by the Mexican Ministry of Health in coordination with the Clinical Trial Service Unit and Epidemiological Studies Unit, part of the Nuffield Department of Population Health, at the University of Oxford and includes 150,000 middle-aged adults (including 100,000 women and 50,000 men) recruited between 1998 and 2004. Credit Nightingale Health Ltd. Usage Restrictions Please credit Nightingale with this image License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.