Report from the in vitro micronucleus assay working group - Kirsch-Volders, M; Sofuni, T; Aardema, M; Albertini, S; Eastmond, D; Fenech, M; Ishidate, M, jr.; Kirchner, S; Lorge, E; Morita, T; Norppa, H; Surralles, J; Vanhauwaert, A; Wakata, A (Mutat Res, 2003)