CSF1 and ovarian serous adenocarcinoma: Using the cis-pQTL definition, positive associations were observed for genetically proxied macrophage colony-stimulating factor 1 (MCSF/CSF1) (1.75, 1.26 to 2.43; p = 7.95 × 10−4) and macrophage inflammatory protein 1-alpha (MIP1a/CCL3) (1.48, 1.18 to 1.86, p = 8.19 × 10−4) in relation to low-grade serous ovarian cancer (Figs. 2, 3 and 4; Additional file 2: Tables S5 & S6).