Sheta, Sheta M.
El-Sheikh, Said M.
Abd-Elzaher, Mokhles M.
Article History
Received: 5 October 2018
Revised: 5 December 2018
Accepted: 20 December 2018
First Online: 8 February 2019
Compliance with ethical standards
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: The authors declare that they have no competing interests.The human serum samples used in this study were provided by the Family Medical Laboratory, Ministry of Health, Cairo, Egypt. Informed consent was obtained. The studies were approved by the appropriate ethics committee (Ministry of Health, Egypt) and were performed in accordance with ethical standards. We did not use the samples in any research involving human participants or research involving physical interventions on study participants or involving processing of personal data but conducted the research according to the method described in the article.