China–Cornell–Oxford Project

The China–Cornell–Oxford Project, short for the "China-Oxford-Cornell Study on Dietary, Lifestyle and Disease Mortality Characteristics in 65 Rural Chinese Counties," was a large observational study conducted throughout the 1980s in rural China, a partnership between Cornell University, the University of Oxford, and the government of China. The study compared the health consequences of diets rich in animal-based foods to diets rich in plant-based foods among people who were genetically similar.

Source: Wikipedia — China–Cornell–Oxford Project (CC BY-SA 4.0)