You can view more details on each measurement unit: miles or km. The SI base unit for length is the metre. 1 metre is equal to 0.000621371192237 miles, or 0.001 km.
This fact has emboldened many to believe that the FDA will not take any action to remove Regenexx from the market despite its observations in 2008 that Regenexx appeared to violate the existing FDA regulatory framework.
Due to the increased risk for a fatal myocardial infarction, the FDA issued a warning in November 2013 that the imaging agents regadenoson (Lexiscan) and adenosine (Adenoscan) should not be used for cardiac nuclear stress tests in patients with signs or symptoms of unstable angina or cardiovascular instability.