The Authors apologise for an error in the affiliation which appears under the authors’ names on the title page of this article. ‘Shahid Beheshti University’ should not have been included. The affiliation should have appeared as follows:-
Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran; and Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
And the footnote on page 1, should read as follows:-
1All correspondence to: Banafsheh Heidari. Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, P.O. Box: 19615-1177, Tehran, Iran.
Tel: +98 21 22404144. Fax: +98 21 22432021. e-mail: ban_heidari@yahoo.com or b.heidari@avicenna.ac.ir
2Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, P.O. Box: 19615-1177, Tehran, Iran.
3Research Institute of Animal Embryo Technology, Shahrekord University, P. O. Box: 115, Shahrekord, Iran.