Thus, mouse survival after asbestos exposure was tested in a well-studied MM mouse model, i.e. in mice heterozygous for the tumor suppressor NF2 [11] either wild-type (C57-NF2+/−) or null-mutant (C57-NF2+/-CR−/−) for the Calb2 gene. This evidence concerns the gene NF2 and neoplasm.