[The control group and the groups with risk of hepatitis C].
García Bengoechea
M
M
Emparanza
J I
JI
González
F
F
Arenas
J I
JI
D006526:Hepatitis C / Q000453:epidemiology* / Q000635:transmission; D006801:Humans; D012307:Risk Factors; D016036:Seroepidemiologic Studies
El grupo control y los grupos de riesgo de hepatitis C.