Fig. 1From: Polymorphisms in the human serotonin receptor 1B (HTR1B) gene are associated with schizophrenia: a case control studyLinkage disequilibrium diagram of the 14 SNPs in HTR1B in the northern Han Chinese population. Cases D’. Cases r2. Controls D’. Controls r2. The number in the grid of the red-white diagram represents the D’ value, the deep red grid represents D’ 1, and the number in the grid of the black-white diagram represents the r2 valueBack to article page