High quality, less bias.
I
I
Needleman
H
H
Worthington
L
L
Fernandez-Gonzalez
P
P
Brunton
J
J
Clarkson
P
P
Coulthard
M
M
Esposito
A-M
AM
Glenny
L
L
Hooper
V
V
Marinho
D
D
Moles
W
W
Shaw
D018849:Controlled Clinical Trials as Topic; D016206:Databases, Bibliographic; D018865:Dental Research; D019317:Evidence-Based Medicine; D006801:Humans; D012196:Review Literature as Topic