Data of Table 3 confirm that red cells number, Hemoglobin, HCT, Neutrophils %, Lymphocytes %, MCP-1 and MIP-1ß serum values change linearly with age in IH samples but not in healthy age-matched samples, suggesting that their level may associate with the clinical IH phase. The gene discussed is CCL2; the disease is isolated hemihyperplasia.