(AP) -- Concerns are being raised about the validity of research done by a Duke University cancer scientist who recently was placed on leave while the school investigates whether he falsely claimed to be a Rhodes scholar.
The editor of a British journal, Lancet Oncology, issued an "expression of concern" Friday about a 2007 study by Duke's Dr. Anil Potti. It described genes that may help predict who most needs chemotherapy.
The journal says that some of Potti's co-authors contacted them this week with concerns about the report, which the medical journal is now investigating. Neither the scientist nor Duke officials could immediately be reached for comment.
Explore further: New research leads to FDA approval of first drug to treat radiation sickness