A cancer researcher and assistant professor at the Boston University School of Medicine Cancer Research Center fabricated data in two papers published in scientific journals, federal authorities announced last week. Sheng Wang, an assistant professor whose research involved molecular biology approaches to understanding cancer, no longer works at BU. His employment at the university ended July 15, according to a spokeswoman. Wang has agreed to retract the two papers and will not be eligible or involved in federally funded research for two years, according to the finding of research misconduct issued by the Office of Research Integrity of the Department of Health and Human Services. "The retraction of these articles is in accordance with a decision reached by the Office of Research Integrity," according to a statement from Boston University. "ORI's decision resulted from an internal review process initiated by Boston University in accordance with institutional policy and federal regulations."