Effect of βlactam antibiotic use in children on pneumococcal resistance to penicillin: prospective cohort study

Nasrin, Dilruba ; Collignon, Peter J ; Roberts, Leslee ; Wilson, Eileen J ; Pilotto, Louis S ; Douglas, Robert M

BMJ, 2002-01, Vol.324 (7328), p.28-30 [Periódico revisado por pares]

London: British Medical Journal Publishing Group

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