Large Drug Firms' Buys Of Smaller Ones Seen As Factor In Drug Price Hikes

Some drug price-control advocates say recent moves by big pharmaceutical companies to buy smaller biotechnology companies that have developed specialty drugs are contributing to rising drug costs and a lack of transparency around how those drugs are priced -- though others say such a business model has been common for years, and the recent high-profile acquisitions by Roche and Gilead Sciences simply serve to highlight this mode

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