Article History
Received: 20 November 2018
Accepted: 14 March 2019
First Online: 2 April 2019
Ethics approval and consent to participate
: The study protocol conforms to the ethical guidelines of the Declaration of Helsinki and was approved by the Ethics Committee of the Beijing Tiantan Hospital. The methods were strictly carried out in accordance with the approved guidelines. Informed consent was obtained from all participants or guardians if they were disturbance of consciousness.
: Not applicable as it is only relevant for Case Reports.
: The authors declare that they have no competing interests.
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