Effectiveness of heptavalent pneumococcal conjugate vaccine in children younger than five years of age for prevention of pneumonia
BLACK, STEVEN B ; SHINEFIELD, HENRY R ; LING, STELLA ; HANSEN, JOHN ; FIREMAN, BRUCE ; SPRING, DAVID ; NOYES, JACK ; LEWIS, EDWIN ; RAY, PAULA ; LEE, JANELLE ; HACKELL, JILL
The Pediatric infectious disease journal, 2002-09, Vol.21 (9), p.810-815 [Periódico revisado por pares]Baltimore, MD: Lippincott Williams & Wilkins, Inc
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