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5. Betsch B (1988) Pharmakokinetische Studien mit Östradiolgekoppelten Nitrosoharnstoffderivaten an Ratten mit chemisch induziertem Mammacarcinom. Nachweis der erhöhten Affinität eines östradiolgekoppelten Zytostatikums zu Östrogenrezeptor positiven Geweben. M.D. Thesis, University of Heidelberg