There was no evidence of publication bias for the association between polymorphism of BRCA2 N372H and overall cancer risk under the heterozygous, dominant, or recessive model by using Egger's weighted regression test (P = 0.866, P = 0.376, P = 0.341) (Figure 4), whereas a strong degree of publication bias was found under the homozygous model (P = 0.032). The gene discussed is BRCA2; the disease is cancer.