Deal-making activity in the fast growing health-care sector is expected to rebound in 2019, law firm Baker McKenzie says. The number of mergers and acquisitions will increase by 7 percent in 2019 to $331 billion, marking a recovery from last year’s drop of 5 percent, the firm said in a joint report with Oxford Economics. The report comes as Bristol-Myers Squibb and Eli Lilly announced acquisitions this month focused on cancer drugs.