Researching Street Children: Methodological and Ethical Issues
Hutz, Claudio S.
Koller, Silvia H.
Bandeira, Denise R.
Forster, Leticia M.
Springfield, VA: ERIC Document Reproduction Service, 1995; 12 p.
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Coyne, Imelda T. (1998-09)
Henschel, A D; Rothenberger, L G; Boos, J (2010)Randomization is an internationally accepted methodological tool used to perform sound clinical research. To ensure the clinical value of medical interventions, both evidence based medicine and new drug approvals require ...