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BMJ.318.7175.56
BMJ.318.7175.56
http://dx.doi.org/10.1136/BMJ.318.7175.56
Meta-analyses of observational data should be done with due care.
P356
Q31942626-D6A61335-C431-4A97-AFDC-0ED913D1E7BF
P356
BMJ.318.7175.56
http://dx.doi.org/10.1136/BMJ.318.7175.56