Systematic review of economic evaluations of the 23-valent pneumococcal polysaccharide vaccine (PPV23) in individuals 60 years of age or older - Nishikawa, Alvaro Mitsunori; Sartori, Ana Marli Christovam; Novaes, Hillegonda Maria Dutilh; Soarez, Patricia Coelho de (Vaccine, 2018)