Received: 21 June 2017
Accepted: 24 January 2018
First Online: 13 February 2018
Ethics approval and consent to participate
: Because this was a retrospective chart review study no ethics committee approval was required. By the rules of the private clinic “Mehmedbasic” informed consent was obtained from all participants included in the study prior to amniocentesis procedure.
: Not applicable.
: All authors declare that they have no competing interests.
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