Tendais-Almeida, M., Ferreira-Magalhães, M., Alves, I., Tavares, M. and Azevedo, I. (2015) “Streptococcus pneumoniae Vaccination in Children and Adolescents at High Risk of Invasive Pneumococcal Disease”, Acta Médica Portuguesa. Lisbon, Portugal, 28(5), pp. 583–589. doi: 10.20344/amp.6545.