Cita recomanada
Sáez Zafra, Marc ; Figueiras, Adolfo ; Ballester, Ferran ; Pérez Hoyos, Santiago ; Ocaña, Ricardo ; Tobías, Aurelio. (2001). Comparing meta-analysis and ecological-longitudinal analysis in time-series studies : a case study of the effects of air pollution on mortality in three Spanish cities. Girona: Universitat. [Consulta: 23 Maig 2013]. Disponible a: http://hdl.handle.net/10256/3541