Citations for: Siddique, Y. H.; Afzal, M. Evaluation of Genotoxic Potential of Norethynodrel in Human Lymphocytes in Vitro. J. Environ. Biol. 2005, 26 (2 Suppl), 387–392.
Found to be genotoxic to human lymphocytes at 60 μg/mL in the presence of metabolic activation (S9 mix), as measured by chromosomal aberrations, sister chromatid exchanges, and replication index.