[Epidemiology and epidemiologic surveillance. Conceptual aspects].
D004813:Epidemiology / Q000639:trends*; D005568:Forms and Records Control; D007878:Legislation as Topic; D008499:Medical Records; D011159:Population Surveillance; D011635:Public Health Administration / Q000639:trends*; D012042:Registries; D013030:Spain
La epidemiología y la vigilancia epidemiológica. Aspectos conceptuales.