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A) Serum levels of PIGF in normal pregnancies (NP) and preeclampsia (PE) measured by ELISA. B) Serum levels of PIGF in NP and PE patients subdivided into placental PE (PLPE) and maternal PE (MTPE). C) Ratio of PIGF to NPY levels measured by radioimmunoassay in sera of subjects with NP and PE. D) Serum PIGF/NPY ratio in NP PLPE and MTPE.
