RT Journal Article SR Electronic T1 Haemophilus influenzae vaccine. JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 107 OP 107 VO 45 IS 391 A1 H Jick A1 J M Withers A1 A D Dean YR 1995 UL http://bjgp.org/content/45/391/107.1.abstract AB