Literature research: aims and design of systematic reviews.
de Vet
H C W
HC
The Institut for Research in Extramural Medicine (EMGO Institute), VU University Medical Center, Amsterdam.
Verhagen
A P
AP
Logghe
I
I
Ostelo
R W J G
RW
D019317:Evidence-Based Medicine / Q000379:methods; D006801:Humans; D012107:Research Design; D012196:Review Literature as Topic