GRAND FORKS, N.D.  -- A cancer researcher who resigned from Duke University in North Carolina two years ago is now working in North Dakota.

The Grand Forks Herald reports Anil Potti is a medical oncologist at the Cancer Center of North Dakota in Grand Forks.

Potti came under scrutiny in 2010 and later resigned after questions arose about his claim to be a Rhodes Scholar and about the integrity of his research. The North Carolina Medical Board concluded that Potti acted unprofessionally.

Potti left a South Carolina cancer center earlier this year following a CBS "60 Minutes" report about his Duke research.

The head of the Grand Forks cancer center says Potti has been unfairly accused. William Noyes also says Potti's work at Duke involved research and not patient care.