Guidant issues warning on more defibrillator models

". . . [t]he latest concerns with Guidant defibrillators may force the Food and Drug Administration to put a 'recall' label on the devices. Last week, Guidant (GDT) said some of its older model defibrillators contained flaws, but those models are out of circulation. The new warning comes on devices that Guidant now is selling." [Investor's Business Daily]