00482nas a2200193   4500000000100000000000100001008004100002100001500043700001700058700001300075700001400088700001300102700001400115700001300129245011200142300001300254490000700267022001400274       2016                            d1 aK. Rothnie1 aH. Mullerova1 aJ. Hurst1 aL. Smeeth1 aK. Davis1 aS. Thomas1 aJ. Quint00aValidation of the Recording of Acute Exacerbations of COPD in UK Primary Care Electronic Healthcare Records  ae01513570 v11  a1932-6203