Types of epidemiological studies in Peruvian biomedical journals.
Estrada
C
C
Andresen
J
J
Villar
A
A
Montalvo
J
J
Limo
J
J
Muro
P
P
González
D
D
D003627:Data Interpretation, Statistical; D004812:Epidemiologic Methods; D006801:Humans; D010506:Periodicals as Topic; D010568:Peru; D012107:Research Design