Molecular and genetic toxicology studies on gene mutation in mammalian cells In vitro. Includes: G201 Mouse Lymphoma L5178Y/tk+/Cell Gene Mutation Assay; G201-R; G202 Mouse Lymphoma L5178Y/tk+/Cell Gene Mutation Screening Assay; G203 Chinese Hamster Ovary or V79 Cell Mutation Assay at the hprt Locus; G203R. - [Read Molecular and Genetic Toxicology Studies on Gene Mutation in Mammalian Cells In Vitro]