Record number: 137Adverse Occurrence type: Undue exposure to risk-interventionMPHO Type: BoneDemonstration of imputability or root cause: Potential graft contamination. Failure of QC release procedureImputability grade: Not AssessableKeywords: bonemicrobiological culturegraft contaminationQC (qualitative control)allogeneicReferences: Le rapport annuel Biovigilance 2009Suggest references: aaa