Pooling of studies in meta-analysis of observational research leads to precise but spurious results.
Bollen
C W
CW
Hoekstra
M O
MO
Arets
H G M
HG
D002648:Child; D016724:Empyema, Pleural / Q000628:therapy*; D006801:Humans; D015201:Meta-Analysis as Topic; D012107:Research Design