TY - JOUR T1 - If directional coronary atherectomy is useful then why is it not used more often? JF - Heart JO - Heart SP - 33 LP - 34 DO - 10.1136/hrt.78.Suppl_2.33 VL - 78 IS - Suppl 2 AU - Mazhar Khan Y1 - 1997/10/01 UR - http://heart.bmj.com/content/78/Suppl_2/33.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -