The city's largest private school by number of students is <answer>Temple University</answer>, followed by Drexel University. Along with the University of Pennsylvania, <answer>Temple University</answer> and Drexel University make up the city's major research universities. The city is also home to five schools of medicine: Drexel University College of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia College of Osteopathic Medicine, <answer>Temple University</answer> School of Medicine, and the Thomas Jefferson University. Hospitals, universities, and higher education research institutions in Philadelphia's four congressional districts received more than $252 million in National Institutes of Health grants in 2015.
What is the largest private institution in the city?
Temple University