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Tleyjeh IM, Tlaygeh HM, Hejal R, Montori VM, Baddour LM (March 2006). "The impact of penicillin resistance on short-term mortality in hospitalized adults with pneumococcal pneumonia: a systematic review and meta-analysis". Clinical Infectious Diseases. 42 (6): 788–797. doi:10.1086/500140. PMID16477555.
Martínez JA, Horcajada JP, Almela M, Marco F, Soriano A, García E, et al. (February 2003). "Addition of a macrolide to a beta-lactam-based empirical antibiotic regimen is associated with lower in-hospital mortality for patients with bacteremic pneumococcal pneumonia". Clinical Infectious Diseases. 36 (4): 389–395. doi:10.1086/367541. PMID12567294. S2CID18795735.
Nilsson P, Laurell MH (December 2001). "Carriage of penicillin-resistant Streptococcus pneumoniae by children in day-care centers during an intervention program in Malmo, Sweden". The Pediatric Infectious Disease Journal. 20 (12): 1144–1149. doi:10.1097/00006454-200112000-00010. PMID11740321.
Block SL, Harrison CJ, Hedrick JA, Tyler RD, Smith RA, Keegan E, et al. (September 1995). "Penicillin-resistant Streptococcus pneumoniae in acute otitis media: risk factors, susceptibility patterns and antimicrobial management". The Pediatric Infectious Disease Journal. 14 (9): 751–759. doi:10.1097/00006454-199509000-00005. PMID8559623.
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von Gottberg A, Klugman KP, Cohen C, Wolter N, de Gouveia L, du Plessis M, et al. (March 2008). "Emergence of levofloxacin-non-susceptible Streptococcus pneumoniae and treatment for multidrug-resistant tuberculosis in children in South Africa: a cohort observational surveillance study". Lancet. 371 (9618): 1108–1113. doi:10.1016/S0140-6736(08)60350-5. PMID18359074. S2CID205950081.
Martínez JA, Horcajada JP, Almela M, Marco F, Soriano A, García E, et al. (February 2003). "Addition of a macrolide to a beta-lactam-based empirical antibiotic regimen is associated with lower in-hospital mortality for patients with bacteremic pneumococcal pneumonia". Clinical Infectious Diseases. 36 (4): 389–395. doi:10.1086/367541. PMID12567294. S2CID18795735.