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JAMA. 2012 Aug 8;308(6):575-6. doi: 10.1001/jama.2012.8144.

The importance of potential studies that have not existed and registration of observational data sets.

Author information

1
Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA. jioannid@stanford.edu
PMID:
22871867
DOI:
10.1001/jama.2012.8144
[Indexed for MEDLINE]

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