Bristol-Myers Squibb Delivers Excellent First Quarter With YERVOY? (ipilimumab) Approval, Key R&D Milestones And Strong Financials

first quarter of 2011. The effective tax rate on earnings before income taxes was 22.6% on a GAAP basis in the first quarter of 2011, compared to 24.2% in the same period in 2010. The Company reported GAAP net earnings attributable to Bristol-Myers...