TY  - RPRT
TI  - Pneumococcal immunisation and the healthy elderly.
AU  - N Steven
AU  - P Wright
PY  - 1992
DO  - 10.1016/0140-6736(92)93048-r
UR  - https://pubmed.ncbi.nlm.nih.gov/1357423/
ID  - 1357423
ER  -