src: His research activities at the Dana Farber Cancer Institute and at Harvard Medical School in Boston, USA, from 1997 to 2000 formed the basis for his current research.
tgt: Seine langjährigen Forschungsarbeiten am Dana Farber Cancer Institute und an der Harvard Medical School in Boston, USA, in den Jahren 1997-2000 bilden die Grundlage für seine aktuellen Forschungsarbeiten.