$Abbott Laboratories (ABT.US)$$DexCom (DXCM.US)$ The CGM (Co...

$Abbott Laboratories(ABT.US)$ $DexCom(DXCM.US)$ The CGM (Continuous Blood Glucose Monitoring) system of Dexcom and Abbott is currently on the market approved by the U.S. FDA with very few high-precision CGMs that require calibration.