TY - JOUR AU - Cohen, J M TI - Maternal antioxidant levels in pregnancy and risk of preeclampsia and small for gestational age birth: a systematic review and meta-analysis JO - PLoS One IS - 08 VL - 10 PY - 2015 DO - 10.1371/journal.pone.0135192 L3 - PubMed-ID: 26247870 SP - e0135192 N1 - et al. ER -