RT Journal Article SR Electronic T1 Traveller Gypsies and childhood immunization JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 482 OP 482 VO 43 IS 376 A1 Mina Hollinger A1 Brid Farrell YR 1993 UL http://bjgp.org/content/43/376/482.1.abstract AB