“…Published data from pregnant women are presented in Table S1 . In those studies, mean sMg concentration in mothers ranged from 0.59 mmol/L to 0.95 mmol/L during gestation [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ], from 0.54 mmol/L to 0.86 mmol/L before or during labor [ 31 , 35 , 40 , 41 , 43 , 46 , 47 , 48 , 49 ], and from 0.54 mmol/L to 0.90 mmol/L at delivery [ 24 , 35 , 36 , 42 , 48 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ].…”