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Nasopharyngeal Pneumococcal Carriage of Children Attending Day Care Centers in Korea: Comparison between Children Immunized with 7-valent Pneumococcal Conjugate Vaccine and Non-immunized
Kim,Kyung-Hyo et al.
Journal of Korean Medical Science(2011), 26 (2):184
http://dx.doi.org/10.3346/jkms.2011.26.2.184