- Received May 7, 2011, and in revised form June 4, 2011.
- Accepted for publication June 18, 2011.
- Reprints: Manal Mohamed Makhlouf, MD, Department of Clinical and Chemical Pathology, Faculty of Medicine, El-Kasr El-Aini Hospital, Cairo University, Cairo, Egypt. E-mail: .
- This study was funded by the author.
- The author declared that the article has not been submitted elsewhere, is not under review, or has not been published previously.
- The author declared no conflicts of interest.
- First published December 15, 2015.
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