How often it is possible to pass or take place US and whether it harms to the kid?...

[Snezhana]

How often it is possible to pass or take place US and whether it harms to the kid?

[Ryazanov And.]

At normally developing pregnancy of US do or make 2 3 times. Optimum time for this purpose 16 24 and 28 34 weeks. A reliable data about harmful influence of US on a fetus while is not present, but among experts there are different points of view on this problem.