Concerns have been raised with regard to similarity of the article entitled “Diagnostic
efficacy of adenosine deaminase levels in cerebrospinal fluid in patients of Tubercular
meningitis: A comparison with PCR for Mycobacterium tuberculosis” with another article
entitled “To compare CSF adenosine deaminase levels and CSF-PCR for tuberculous
meningitis”. The submitting and corresponding authors have been contacted and an
investigation into these concerns is ongoing. Annals of Neurosciences will provide
additional information as it becomes available.