TY  - RPRT
TI  - Polysaccharide pneumococcal vaccines.
AU  - Tom Jefferson
AU  - Vittorio Demicheli
PY  - 2002
DO  - 10.1136/bmj.325.7359.292
UR  - https://pubmed.ncbi.nlm.nih.gov/12169492/
ID  - 12169492
ER  -