Search for: [Subject = betulin] OR [Subject = triterpenes] OR [Subject = cytotoxicity] OR [Subject = betulina] OR [Subject = triterpeny] OR [Subject = cytotoksyczność] OR [Title = Cytotoxicity of semisynthetic betulin derivatives] OR [Title = Cytotoksyczność półsyntetycznych pochodnych betuliny] OR [Author = Achrem\-Achremowicz, Jacek]