CCL13 and post-traumatic stress disorder: Supplementary Figure 5 tests for entrainment differences for MCP-4 between PTSD and healthy controls. The data show that ca. 80% of PTSD and healthy controls peak after sunrise. Entrainment differences for females (Supplementary Figure 5a) and males (Supplementary Figure 5b) can be seen at (6<Z<12) h. However, Supplementary Figure 5d shows that these differences only trend towards significance, except for male PTSD patients at (9<Z<12) hours.