HAWTHORNE, Calif., Sep 21, 2009 (BUSINESS WIRE) -- Presentation time in first graph, second sentence of release should read: 8:30am ET (5:30am PT) (sted 8:30am ET (9:30am PT)). The corrected release reads: OSI SYSTEMS TO PRESENT AT THE 2009 UBS GLOBAL LIFE SCIENCES CONFERENCE OSI Systems, Inc.