TECHNICAL DOCUMENT Effectiveness of rotavirus vaccination – Generic study protocol for retrospective case control studies based on computerised databases
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چکیده
Generic study protocol for retrospective case control studies based on computerised databases ii
منابع مشابه
Effectiveness of rotavirus vaccination against childhood diarrhoea in El Salvador: case-control study
OBJECTIVE To evaluate the effectiveness of a monovalent rotavirus vaccine against severe rotavirus disease and to assess its impact on diarrhoea in children aged less than 2 years after national introduction in El Salvador, a low-middle income country in Central America. DESIGN Matched case-control study. SETTING Seven hospitals in cities across El Salvador, January 2007 to June 2009. PAR...
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