A former professor at the Ohio State University who had pleaded guilty to making false statements to federal authorities related to concealing his financial ties to China while receiving funding from the National Institutes of Health was sentenced to more than three years in prison on Friday and was ordered to pay millions in restitution.

Song Guo Zheng, formerly a leading immunologist and rheumatologist at the Ohio State University and Penn State University, received 37 months behind bars, and the judge also ordered Zheng to pay more than $3.4 million to the NIH and roughly $413,000 to the Ohio State University.