The difference between "apparent logic" and scientific truth: coronary stents

http://www.nytimes.com/2015/06/23/health/heart-attack-stent-angiogram-chest-pain-angina.html?hpw&rref=science&action=click&pgtype=Homepage&module=well-region&region=bottom-well&WT.nav=bottom-well&_r=1

http://www.medpagetoday.com/Cardiology/MyocardialInfarction/52299?xid=nl_mpt_DHE_2015-06-26&eun=g432148d0r