a direct correlation can be seen ( y = 0,030 x + 1,68 , r = 0,92 , p less than 0,0001 ) between the average monthly rate ( y : ng/ml ) of 25-oh-d3 in the cord plasma and the number of sunny hours ( x : hours/month ) for the area concerned ( lyons , france ) in the last month of pregnancy .
C2713074
25-oh-d3
C0032961
pregnancy