Figure 5From: Lack of influence of GTP cyclohydrolase gene (GCH1) variations on pain sensitivity in humansNon significant association between pain sensitivity and GCH1 tag SNP combinations in European American females. tag SNP combination A:A_T_C_A_A_C_G_C_G_G_G_G. B: A_T_C_A_A_C_A_C_G_G_G_T. C: T_C_T_G_T_T_G_C_A_C_A_G. D: A_C_C_G_A_T_G_T_G_C_G_T. E: A_C_C_G_A_C_G_C_G_G_A_G.Back to article page