Pensions and the publicly funded National Health Service could face cuts if Britons vote to leave the European Union, Prime Minister David Cameron told a Sunday newspaper, seeking to win support from some of the most pro-Brexit members of the public. Polls, which show Britons are evenly divided ahead of a June 23 referendum on EU membership, also indicate the elderly are among the most likely to turn out on polling day and are also among the most eurosceptic voters.