![](/img/cover-not-exists.png)
Validity of Qualis database as a predictor of evidence hierarchy and risk of bias in randomized controlled trials: a case study in dentistry
Ferreira, Christiane Alves, Loureiro, Carlos Alfredo Salles, Saconato, Humberto, Atallah, AlvaroVolume:
66
Year:
2011
Language:
english
Journal:
Clinics
DOI:
10.1590/s1807-59322011000200025
File:
PDF, 111 KB
english, 2011