It is understandable that Okun and colleagues wish to clarify that the gamma knife procedures described in their article were not done at their institution. According to them, their article clearly states that the procedures were not performed at Emory; however, the identity of the "outside institution" or neurosurgeon is never mentioned. Although both the abstract and "Conclusions" section apparently state that the procedure was done elsewhere, this could not be clearly inferred from the statements that the patients were "seen in referral at our center" (abstract) and were "referred to our institution" ("Conclusions"). Nevertheless, I respect their desire to conceal the identity of the surgeon and the outside institution. As to their second point, my editorial does not state that the patients were "seen during the 6-month postoperative period." Rather, I note that the authors "describe 8 patients who, during a period of 6 months, were treated with GK [gamma knife] surgery. . . ." The draft of the paper I originally reviewed was based on a 6-month observation period; this was extended to 8 months by the time the article was published. Finally, my concern about interpreting the results of an uncontrolled study was not meant to mislead readers that the patients were part of a clinical trial at Emory.
Jankovic J. In reply. Arch Neurol. 2002;59(8):1334–1335. doi:
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