As shown in Fig. 1a, between the ages of 10–15 months, none (0/10) of the MGL+/+ mice had any grossly visible tumor, whereas 53% (9/17) (p < 0.05) of MGL+/− mice and 43% (6/14) (p < 0.05) of MGL−/− mice had visible tumor nodules in several different organs (Fig. 1a and Table 1). The gene discussed is MGLL; the disease is neoplasm.