Pfizer ( id="symbol_PFE.N_0"> PFE.N ) sought to allay fears that its proposed $106 billion takeover of AstraZeneca ( id="symbol_AZN.L AZN.L ) would deal a blow to drug research, saying the new company would bolster innovative science and speed the development of new treatments. _0"> The deal would be the largest foreign takeover of a British company and has raised fears that resulting cost cutting would see the loss of thousands of skilled jobs, undermining the UK's science base. _1"> AstraZeneca, Britain's second-largest drugs company, has rejected successive approaches from its larger American rival. As political opposition to the plan grew, Pfizer reiterated its commitment to the deal, posting a graphic on its website that touted the benefits of a merger. It said the combined group would be able to expand its global research, speed up the development of treatments and broaden its footprint in emerging markets. A combined Pfizer-AstraZ