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Time-series showing monthly incidence of otitis media/acute otitis media (OM) in the pre-PCV, PCV7, and PHiD-CV eras in Skåne
PCV = pneumococcal conjugate vaccine, PCV7 = 7-valent pneumococcal conjugate vaccine, PHiD-CV = pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine
