 Complete the following phrase:  In the 20th century, scholarly research at the University of Helsinki reached the level of the European elite in many disciplines. This was manifested, among other things, by international recognitions granted to its professors, such as the Fields Medal received by the mathematician Lars Ahlfors 1936, the Nobel Prize in Chemistry granted to Professor A.I. Virtanen 1945 and the Nobel Prize in Medicine shared by Professor Ragnar Granit 1967. In the 