it is suggested that calcium absorption in the maternal intestine might be increased by the action of increased serum 1 alpha , 25- ( oh ) 2 vitamin d3 , and the maternal bone during pregnancy might be kept at the same density as in non-pregnant women because increased ct protects the maternal skeleton by resisting the bone-resorbing activities of 1 alpha , 25- ( oh ) 2 vitamin d3 .
C0262950
bone
C0037253
skeleton