1. Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
2. Pfizer Drug Safety Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
3. Pfizer Oncology, 401 North Middletown
Road, Pearl River, New York 10965, United States
4. Pfizer Oncology Medicinal Chemistry, 445 Eastern Point Road, Groton, Connecticut 06340, United States