“prenatal period”簡單造句，prenatal period造句子

The study also urges a shift in spending from teenage years to the prenatal period and early childhood.

Research in recent years has established that hunger in the prenatal period and in infancy deprives a child of the nourishment the brain needs to grow properly.

Ultrasonography — This will reveal the degree of dilatation of the renal pelvis and calices and allows for diagnosis of hydronephrosis in the prenatal period.