Changes in tuberculin skin test positivity over 20 years in periurban shantytowns in Lima, Peru.
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Andres M. Carnero | C. Evans | R. Gilman | L. Cabrera | R. Oberhelman | D. Callacondo | A. Lundgren | M. Saito | A. M. Carnero | T. Pelly | Leonardo Martinez | Alyssa Arman | N. Haveman | Gisela Collazo | Ashley D Lundgren | Tom F. Pelly