Figure 4.

Distribution of genotypes and phenotypes in different ethnic and geographic groups. Comparison of Lewis (A) and Secretor (B) allele frequencies among different populations. (*Population in present study; a: Liu et al. 10; b: Liu et al. 19; c: Park et al. 29; d: Narimatsu et al. 25; e: Soejima et al. 31; f: Corvelo et al. 16; g: Pang et al. 15; h: Liu et al. 23; i: Yip et al. 22; j: Pang et al. 30 ; k: Chang et al. 26; l: Park et al. 9; m: Koda et al. 6; n: Liu et al. 28.)