(Q63483462)
Statements
Clinical effectiveness of 23-valent pneumococcal polysaccharide vaccine against pneumonia in middle-aged and older adults: a matched case-control study (English)
Elisabet Salsench
Olga Ochoa-Gondar
Cinta de Diego
Amparo Valdivieso
Imma Hospital
Frederic Gomez-Bertomeu
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