12879_2015_1154_MOESM1_ESM.docx (24.53 kB)
Additional file 1: of Frequency and impact of confounding by indication and healthy vaccinee bias in observational studies assessing influenza vaccine effectiveness: a systematic review
journal contribution
posted on 2015-10-17, 05:00 authored by Cornelius Remschmidt, Ole Wichmann, Thomas HarderProtocol for systematic review: Frequency and impact of selection bias in observational studies assessing influenza vaccine effectiveness: A systematic review. (DOCX 24Â kb)