SAN FRANCISCO — Mergers and acquisitions will continue to be a big theme across the med-tech landscape, according to a report released at the 34th annual J.P. Morgan Healthcare conference. While 2015 produced the closing of one of the largest transactions in the med-tech space, via Medtronic plc's. (Dublin) acquisition of Covidien, J.P. Morgan analysts said there are more likely to be growth-enhancing deals than large-cap M&A or mergers of equals.