RT Journal Article SR Electronic T1 More opportunities for your opinions: TheJECH speaker's corner JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 217 OP 217 DO 10.1136/jech.55.4.217 VO 55 IS 4 A1 ILDEFONSO HERNANDEZ-AGUADO A1 CARLOS ALVAREZ-DARDET YR 2001 UL http://jech.bmj.com/content/55/4/217.abstract AB