RT Journal Article SR Electronic T1 Immunisation in the UK: protected for the future JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 261 OP 263 DO 10.7861/clinmedicine.9-3-261 VO 9 IS 3 A1 David Salisbury YR 2009 UL http://www.rcpjournals.org/content/9/3/261.abstract