Figure 3From: A whole blood gene expression-based signature for smoking status Expression levels of four most significant genes as assessed by qRT-PCR across 1074 PREDICT subjects grouped by self-reported smoking status. Expression levels are shown in Cp units on the Y axis, self-reported smoking status is shown on the X axis. (A) LRRN3; (B) CLDND1; (C) SASH1; (D) P2RY6.Back to article page