By the numbers. Top 20 pharmaceutical companies, ranked by U.S. sales, October 2004 to September 2005.
D003132:Commerce / Q000706:statistics & numerical data / Q000639:trends; D003625:Data Collection; D004345:Drug Industry / Q000145:classification / Q000191:economics*; D007182:Income / Q000706:statistics & numerical data / Q000639:trends; D014481:United States