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This is to certify that your paper entitled «Enhanced periplasmic expression of human Granulocyte Macrophage Colony Stimulating Factor in Escherichia coli by the modification of the signal peptide cleavage site» was indexed with 4 pages, in the CIVILICA citation database, code COI:NBCI04_074, after evaluation and approval of the referees of the "04th National Biotechnology Congress of Iran held in Kerman 2005.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.