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BMJOPEN-2012-000833
BMJOPEN-2012-000833
http://dx.doi.org/10.1136/BMJOPEN-2012-000833
The older the better: are elderly study participants more non-representative? A cross-sectional analysis of clinical trial and observational study samples
P356
Q36496681-A6A5877C-61B2-4ED2-A201-A91F86C2F206
P356
BMJOPEN-2012-000833
http://dx.doi.org/10.1136/BMJOPEN-2012-000833