[Study of contacts in the XXI Century: innovations are needed].
Joan A
JA
Caylà
Angels
A
Orcau
D003140:Communicable Disease Control; D016358:Contact Tracing / Q000379:methods / Q000639:trends; D018563:Disease Notification / Q000379:methods; D006801:Humans; D014376:Tuberculosis / Q000453:epidemiology / Q000517:prevention & control