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The impact of 7-valent pneumococcal conjugate vaccine (PCV7) was studied using the Nationwide Inpatient Sample, which is the largest source of inpatient data in the United States and drawn from about 1000 community hospitals.

Pneumococcal Vaccine has Changed the Epidemiology of Pneumococcal Meningitis

The impact of 7-valent pneumococcal conjugate vaccine (PCV7) was studied using the Nationwide Inpatient Sample, which is the largest source of inpatient data in the United States and drawn from about 1000 community hospitals.