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Article History

Received: 29 April 2019

Accepted: 3 September 2020

First Online: 11 September 2020

Ethics approval and consent to participate

: The study was approved by the Ethics Committee of the Yantai Yuhuangding Hospital and conducted in accordance with approved guidelines. Written informed consent to participate was obtained from the proband, the proband’s wife and the proband’s parents before collecting blood samples and fetal DNA samples.

: We confirm that all participants in the case report gave their consent for their medical data to be published. A copy of the written consent is available for review by the editor of this journal on request.

: The authors declare that they have no competing interests.