Most frequently mentioned twitter users in tweets containing one of: "mhealth" between Nov. 20, 2012, 11:40 a.m. and Dec. 4, 2012, 11:40 a.m.

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  • 6295 mentions between Nov. 20, 2012, 11:40 a.m.
  • and the end of the race at Dec. 4, 2012, 11:40 a.m.