Regarding "a closer look at meta-analyses of observational data".
Navarese
Eliano Pio
EP
Buffon
Antonino
A
De Luca
Giuseppe
G
De Servi
Stefano
S
D017545:Aortic Aneurysm, Thoracic / Q000401:mortality / Q000601:surgery*; D001019:Aortic Rupture / Q000401:mortality / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000401:mortality; D003627:Data Interpretation, Statistical; D006801:Humans; D015201:Meta-Analysis as Topic; D017594:Publication Bias; D015203:Reproducibility of Results; D018570:Risk Assessment; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome