Topoisomerase I activity and sensitivity to camptothecin in breast cancer-derived cells: a comparative study oleh Cinzia Tesauro, Anne Katrine Simonsen, Marie Bech Andersen, Kamilla Wandsoe Petersen, Emil Laust Kristoffersen, Line Algreen, Noriko Yokoyama Hansen, Anne Bech Andersen, Ann Katrine Jakobsen, Magnus Stougaard, Pavel Gromov, Birgitta R. Knudsen, Irina Gromova