The University of Nebraska Medical Center continues to investigate some of its own research to resolve questions about the integrity of the data.
Officials confirmed the investigation in August after the American Journal of Respiratory and Critical Care Medicine raised questions about a study it published online in February.
The study was done jointly by UNMC and researchers from Temple University School of Medicine in Philadelphia.
UNMC spokesman Tom O'Connor said this week that the investigation was still ongoing. But O'Connor declined to provide any details because the process is confidential until it is completed.
The study involved examined the role of some proteins involved in a lung complication associated with the AIDS virus.
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