Clinical Vision. The Information Technology Business of McKessonHBOC, Inc., Alpharetta, GA, announced an expanded commitment to improved patient safety and reduced costs with [Horizon.sup.WP] Clinicals, an integrated suite of solutions. The suite features an expert physician order entry system with real-time clinical decision support, developed in conjunction with Vanderbilt University Medical Center, which has experienced a $3.5 million annual reduction in its pharmacy costs, www.hboc.com