Update: Expanded ClinicalTrials.gov search capabilities.

Tse T, Johnson SO, Ripple AM

NLM Tech Bull. 2002 Jul-Aug;(327):e5.

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Abstract:

Tse T, Johnson SO, Ripple AM. Update: Expanded ClinicalTrials.gov search capabilities. 
NLM Tech Bull. 2002 Jul-Aug;(327):e5.

URL: http://www.nlm.nih.gov/pubs/techbull/ja02/ja02_ctgov.html