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10.1213%2F01.ane.0000255732.16057.1c
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10.1378%2Fchest.120.4.1412
10.1016%2FS0140-6736%2803%2913167-4
10.1016%2FS0272-5231%2805%2970287-2
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10.1097%2F00128594-199804000-00006