RT Journal Article SR Electronic T1 Real or perceived adverse effects of vaccines and the media—a tale of our times JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 402 OP 403 DO 10.1136/jech.54.6.402 VO 54 IS 6 A1 TOM JEFFERSON YR 2000 UL http://jech.bmj.com/content/54/6/402.abstract AB