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Smith GC, Pell JP, Walsh D.Smith GC, et al. Among authors: pell jp.Lancet. 2001 Jun 23;357(9273):2002-6. doi: 10.1016/S0140-6736(00)05112-6.Lancet. 2001.PMID: 11438131
Smith GC, Pell JP, Dobbie R.Smith GC, et al. Among authors: pell jp.Lancet. 2003 Nov 29;362(9398):1779-84. doi: 10.1016/s0140-6736(03)14896-9.Lancet. 2003.PMID: 14654315
Smith GC, Pell JP.Smith GC, et al. Among authors: pell jp.BMJ. 2003 Dec 20;327(7429):1459-61. doi: 10.1136/bmj.327.7429.1459.BMJ. 2003.PMID: 14684649Free PMC article.Review.