title: Response to letter: on the validity of meta-analysis.
authors.forename: Mireen
authors.initials: M
authors.lastname: Friedrich-Rust
authors.forename: Eva
authors.initials: E
authors.lastname: Herrmann
mesh_terms: D054459:Elasticity Imaging Techniques; D006801:Humans; D015201:Meta-Analysis as Topic; D018579:Patient Selection; D012196:Review Literature as Topic; D015983:Selection Bias