In the articles [1,2] that have been published in NEUROANATOMY more than 3 years ago (as on January 29, 2007), the last author Sukhmahendra SINGH, via his e-mail (on March 29, 2010) informed us that he never signed the Copyright Transfer Forms for the abovementioned manuscripts which was sent to NEUROANATOMY prior to publishing, although the space for his signature were signed in both forms. Whereupon we invited the authors to provide the missing signatures, and informed them that otherwise we would have to retract the articles and notify their institutions. Furthermore, we would like to note the unethical behavior of the authors that we were informed via an e-mail of advice around the same time. The article  that was previously published in NEUROANATOMY was nearly identically published later in NEUROSURG REV journal . The editors of NEUROSURG REV later on retracted the above article, which was previously published in our journal, with the reason in the retraction note as ‘containing substantial data and methods as well as discussion from the previously published ’ article in NEUROANATOMY . We were not aware of the retraction process in NEUROSURG REV till receiving the e-mail of advice; neither the editors of NEUROSURG REV acquainted us with the issue. Taking into consideration a possible misconduct of the authors some of whom bearing established unethical scientific behavior, in the signatures on the copyright transfer forms, our journal decided to retract the above mentioned two articles. Their institutions will be advised via this notice of retraction. We would like to apologize to our readers and the international scientific community for this inconvenience that was totally occurred out of NEUROANATOMY, and respectfully announce to the scientific world
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