Table 1 Tests on maternal blood sample:Routine blood sampling (UZA) Urea, Creatinin, CRP, LDH, AST, ALT, Uric acid, APTT, PT, Fibrinogen, D-dimers, Glucose, Erythrocytes/hematocrit, Hemoglobin, Thrombocytes, Leukocytes, Ferritin, Toxoplasmosis (IgG & IgM), CMV (IgG & IgM), Herpes simplex IgG, Varicella zoster IgG, Rubella IgG, Parvovirus (IgG & IgM), Syphilis (RPR & TPHAM), Indirect Coombs AML sFlt-1, PlGF, Cystatin C VITO m(i)RNA expression, telomere length, DNA methylation