Health care probe: Nearly 200 charged in schemes worth $2.75 billion USA TODAYArizona wound care company charged for billing older patients about $1 million each in skin graft scheme CBS NewsDOJ charges nearly 200 people over $2.7 billion in health care fraud schemes Fox Business6 Metro Detroit residents charged in alleged schemes to defraud $2.75B in false Medicare claims WDIV ClickOnDetroitAttorney General Garland Announces Results of Nationwide Health Care Fraud Law Enforcement Action C-SPAN