bibliographic entry 12868298 [be/12868298]
https://w3id.org/oc/corpus/be/12868298

is a

• bibliographic reference

content

• Egger, M, Davey Smith, G, Schneider, M, Minder, C. Bias in meta-analysis detected by a simple, graphical test, BMJ, 1997, 315, 629, 634, PMID: 9310563

references

• https://w3id.org/oc/corpus/br/6110