Pfizer   1Q Revenues: $10.9 billion (-4%) 1Q Earnings: $2.4 billion (+2%) Comments: Established product sales were down 10% to $5.0 billion in the quarter, primarily due to the loss of exclusivity for Celebrex in the U.S., as well as generic competition for Zyvox IV in the U.S., and for Lyrica in certain developed European markets. These declines were partially offset by performance in emerging markets, where revenues increased 10% operationally, primarily driven by Lipitor, Viagra and Norvasc...