Risk factors associated with Vasa Previa

There are few risk factors of vasa previa if:

The placenta is low lying, also known as placenta Previa.

If your previous birth was by cesarean delivery. 

Pregnancy was through in vitro fertilization.

In case of multiple babies.

You had uterine surgery

Question: Is velamentous cord insertion, a major cause for Vasa Previa? Yes/No

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