To my three-year daughter have diagnosed About, About. About, Mars. Explain pozhalujst...

[Goar]

To my three-year daughter have diagnosed About, About. About, Mars. Explain please, what is it, and how much or as far as it is dangerous to its or her health. Thanks.

[Nogovitsyn V.J.]

It to the cardiologist. The open oval window, small anomalies of development of heart.