by
Trickett, Edison J.
Format:
Electronic Resources
Publication Date
2005
Excerpt:
The tyranny of clinical trials: alternative designs for assessing individual and community level
by
Margetts, Barrie M.
Format:
Books
Publication Date
1997
Excerpt:
Inskip and David Coggon. 16. Experimental studies: clinical trials, field trials, community trials, and
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