(NEW YORK)Shares of some top medical devices companies were up at the close of trading: Abbott Labs rose $4.76 or 9.6 percent, to $54.21.READ MORE

(NEW YORK)Shares of some top medical companies are up at noon: Abbott Labs rose $3.05 or 6.2 percent, to $52.50.READ MORE

(NEW YORK)Shares of some top medical companies are up at 10 a.m.: Abbott Labs rose $2.46 or 5.0 percent, to $51.91.READ MORE

(NEW YORK)Shares of some top medical companies are down at noon: Abbott Labs fell $1.10 or 2.2 percent, to $48.79.READ MORE

(NEW YORK)Shares of some top medical companies are down at 10 a.m.: Abbott Labs fell $.66 or 1.3 percent, to $49.23.READ MORE

(NEW YORK)Shares of some top medical devices companies were down at the close of trading: Abbott Labs fell $5.04 or 9.1 percent, to $50.25.READ MORE

(NEW YORK)Shares of some top medical companies are mixed at noon: Abbott Labs fell $1.04 or 1.9 percent, to $54.25.READ MORE