Boston Scientific's (BSX) heart stents are less effective in studies than those of Abbott...

|About: Boston Scientific Corpor... (BSX)|By:, SA News Editor

Boston Scientific's (BSX) heart stents are less effective in studies than those of Abbott Laboratories (ABT), Johnson & Johnson (JNJ) and Medtronic Inc (MDT). Stents comprise a $4B market. BSX -1.2% premarket.