Ann Intern Med. 2002 Feb 5;136(3):254-9.
The landscape and lexicon of blinding in randomized trials.
Schulz KF, Chalmers I, Altman DG.
Family Health International, Box 13950, Research Triangle Park, NC 27709, USA.
PMID: 11827510 [PubMed - indexed for MEDLINE]
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