@misc{indiciae5b64b77ad7ec, title = {Pneumococcal immunisation and the healthy elderly.}, author = {N Steven and P Wright}, year = {1992}, doi = {10.1016/0140-6736(92)93048-r}, url = {https://pubmed.ncbi.nlm.nih.gov/1357423/}, note = {Source identifier: 1357423} }