Complex sentence: Students who wish to study law are usually admitted to the University of Paris II Pantheon Assas, or for a medical degree they are admitted to the University of Paris V Descartes, both considered the best in France in their field.
Split into simpler sentences: Students who wish to study law are usually admitted to the University of Paris II Pantheon Assas. And those who want to obtain a medical degree are usually admitted to the University of Paris V Descartes, both considered the best in France in their field.