Trust but verify: trial registration and determining fidelity to the protocol [Letter].

Zarin D, Tse T

Ann Intern Med. 2013 Jul 2;159(1):65-7. doi: 10.7326/0003-4819-159-1-201307020-00011.

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Abstract:

Comment On Ann Intern Med. 2013 Jul 2;159(1):72

Zarin D, Tse T. Trust but verify: trial registration and determining fidelity to the protocol [Letter]. 
Ann Intern Med. 2013 Jul 2;159(1):65-7. doi: 10.7326/0003-4819-159-1-201307020-00011.

PMID