The older the better: are elderly study participants more non-representative? A cross-sectional analysis of clinical trial and observational study samples.
BMJ Open
; 2(6)2012.
Article
in En
| MEDLINE
| ID: mdl-23242479
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Clinical_trials
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Language:
En
Journal:
BMJ Open
Year:
2012
Document type:
Article
Affiliation country:
Estados Unidos
Country of publication:
Reino Unido