Adhering to the growth of the fetus and fetal quality, quality of the gas of the fetus with fetal development, gas and plasma biochemical three hundred days, fetal gas enough mass, to form a complete
Uphold the quality of the fetus and fetal growth of the gas, along with the quality of the gas fetus fetus and transportation of gas and qualitative biochemistry Sanbai day, the fetus quality air feet wide, to achieve satisfactory form
Fetal uphold fetal growth, fetal gas with fetal and transport, gas and biochemical quality 300 days, fetal gas of sufficient quality meet satisfactory morphology