Randomized and non-randomized studies: Threats to internal and external validity

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Autoria(s): Sanderson, C.; McKee, M.; Britton, A.; Black, N.; McPherson, K.; Bain, C. J.

Contribuinte(s)	A Stevens et al
Data(s)	01/01/2001
Identificador	http://espace.library.uq.edu.au/view/UQ:67887
Publicador	Sage
Palavras-Chave	#321202 Epidemiology #730306 Evaluation of health outcomes #B1
Tipo	Book Chapter