PECAM1 and congestive heart failure: Biomarker risk score for cumulative cardiovascular events, constructed by measurement of circulating NT-pro-BNP, galectin-3, hs-CRP, osteoprotegerin, CD31+/annexin V+ EMPs and CD31+/annexin V+ EMPs to CD14+CD309+ MPCs ratio, allowing reliably predict the probability survival of patients with CHF.