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Background Preterm birth (PTB) is the major health problem world-wide; there are few published studies on PTB and folic acid. Methods The study was conducted to assess the serum level of folic acid in PTB. A case-control study was conducted at Saad Abualila maternity hospital (Khartoum, Sudan) during the period of March through December 2015. Women who delivered live singleton babies were dived...
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