TOKYO — A Japanese government-funded laboratory said Friday that it has found ‘‘inappropriate handling’’ of data in a widely heralded stem-cell research paper, but has yet to discover anything that amounts to misconduct.
In an interim report released Friday, the RIKEN research institute said an investigative committee did not find any misconduct in two of the six parts of the paper it is scrutinizing.
RIKEN President Ryoji Noyori, a Nobel laureate in chemistry, said the institute is looking into ‘‘significant discrepancies’’ in the preparation of articles about the research published in January in the scientific journal Nature.
‘‘It may become necessary to demand the withdrawal of the articles,’’ he told a packed news conference in Tokyo.
RIKEN and Nature are investigating allegations of duplicated images of DNA fragments and partial plagiarism.
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