00465nas a2200181   4500000000100000000000100001008004100002100001500043700001700058700001200075700001500087700001600102700001500118245010000133300001200233490000600245022003200251       2014                            d1 aR. Cornish1 aJ. Henderson1 aA. Boyd1 aR. Granell1 aT. Van Staa1 aJ. Macleod00aValidating childhood asthma in an epidemiological study using linked electronic patient records  ae0053450 v4  a2044-6055 (Print) 2044-6055