Syrogiannopoulos G.A., Michoula A.N., Tsimitselis G., Vassiou K., Chryssanthopoulou D.C., Grivea I.N. (2016)
Abstract: Background: Parapneumonic effusions in children are usually associated with pneumococcal infections. In Greece, the 7-valent pneumococcal conjugate vaccine was replaced by higher-valent pneumococcal conjugate ...