00404nas a2200181   4500000000100000000000100001008004100002100001300043700001500056700001500071700001300086700001300099700001600112245004400128300001100172490000700183022003200190       2000                            d1 aD. Gupta1 aA. Hansell1 aT. Nichols1 aT. Duong1 aJ. Ayres1 aD. Strachan00aEpidemiology of pneumothorax in England  a666-710 v55  a0040-6376 (Print) 0040-6376