                      While the intervention was expanded to the whole country only in 2004, the studies refer to time points from 2001, 2004, 2007 and 2010. Thus only the studies that reported the findings in 2007 and 2010 had a realistic chance to detect the effect of the intervention

  The methods for data collection were appropriate for the purpose of the study                    Low risk                                                                     The United States Government mandated the Secretary of Department of Health and Human Services and the Department of Justice to create a joint task force in 1996 which implemented a number of interventions to reduce corruption in the Medicare/Medicaid programmes. An annual report is submitted to Congress every year. The case study is based on the annual reports of the Department of Justice and the Secretary of Health and Human Services from 2006 to 2014.   
  Interventions   