Association between short-term exposure to PM and cardiovascular mortality in Iran: a systematic review and meta-analysis

Comparison of zinc levels in mothers with and without abortion: A systematic review and meta-analysiss

“…The transfer of Zn to the fetus is primarily determined by the maternal Zn status [ 7 , 10 ]. Limited Zn transfer from mother to fetus puts premature infants at a high risk of deficiency [ 11 , 12 ]. The World Health Organization (WHO) recommended a Zn requirement of 1.1–2.0 mg/day during pregnancy [ 13 ], but the requirements increase to 3 mg/day in the later stages of pregnancy [ 13 , 14 ].…”