RT Journal Article SR Electronic T1 Pneumococcal vaccine. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 345 OP 348 DO 10.1136/thx.43.5.345 VO 43 IS 5 A1 R T White YR 1988 UL http://thorax.bmj.com/content/43/5/345.abstract AB