TY - RPRT TI - [Vaccine safety surveillance in Belgium : place and limits of a background rate approach] AU - Robays Jo AU - Hanquet Germaine AU - Roberfroid Dominique AU - Thiry Nancy AB - KCE Reports 188C (2012) T2 - KCE Reports CY - Brussels PY - 2012 LA - English M3 - Health Services Research (HSR) PB - Belgian Health Care Knowledge Centre (KCE) SN - 188 VO - DO - https://kce.fgov.be/report/188 ER -