Which university is Switzerland's oldest university and has Jean Pieters as a professor?
University of Basel The University of Basel (German: "Universität Basel") is located in Basel, Switzerland. Founded on 4 April 1460, it is Switzerland’s oldest university and is counted among the leading institutions of the country.
Geneva University Hospital The Geneva University Hospitals (French: "Hôpitaux universitaires de Genève" , HUG) is one of the five university hospitals of Switzerland, and the largest one in the country.