CCL2 and androgen insensitivity syndrome: Since previous study found that circulating MMP-9 and MCP-1 levels were related to the opening of collateral circulation, we tested the expression of plasma MMP-9 and MCP-1 in this cohort and found no significant difference in plasma MMP-9 and MCP-1 levels between the AIS and control groups (Supplementary Figures 7, 8).