Kotler L, Greenberg D, Givon-Lavi N, van der Beek BA, et al. Decline in pneumococcal nasopharyngeal carriage in children 6-23 months with
respiratory illnesses following pneumococcal conjugate vaccine implementation. Vaccine 2021 Sep 1. pii: S0264-410X(21)01130.
PMID: 34481698