RT Journal Article SR Electronic T1 Level of immunity to rubella in several group practices in Ireland. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 135 OP 136 VO 36 IS 284 A1 B. Ramsay A1 J. Keenan YR 1986 UL http://bjgp.org/content/36/284/135.2.abstract AB