Wikidata

(Q49166593)

English

Commentary: observation versus intervention--what's different?

scientific article published on 27 May 2004

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title
Commentary: observation versus intervention--what's different? (English)
1 reference
stated in
Europe PubMed Central
PubMed publication ID
15166202
retrieved
18 February 2018
reference URL
http://europepmc.org/abstract/MED/15166202

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