9Flint OP,orton TC.An in Vitro assay for teratogens with cultures of rat embryo midbrain and limb bud cells.ToxicoL Appl pharmacol 1984;76:383
10Renault JY,et al.ultrasteural characterization of normal and abnormal chondrogenesis in micromass rat embryo limb bud cell cultures.Toxicol Appl pharmacol 1995
