- Correspondence to Dr Peristera Paschou, Department of Molecular Biology and Genetics, Democritus University of Thrace, Panepistimioupoli, Dragana, Ktirio 8, Alexandroupoli 68100, Greece;
- Received 18 February 2010
- Revised 28 April 2010
- Accepted 1 June 2010
- Published online 4 October 2010.
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