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. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Contemp Clin Trials. 2011 Feb 26;32(3):309–317. doi: 10.1016/j.cct.2011.02.001

Figure 1.

Figure 1

Figure representing the multi-center DELTA network implementation. (Only 3 of the 5 participating centers are illustrated for clarity)

DB = Database, DELTA = Data Extraction and Longitudinal Trend Analysis, SMTP = Simple Mail Transfer Protocol, SSL = Secure Socket Layer.