Most frequently mentioned twitter users in tweets containing one of: "mhealth" between Sept. 26, 2012, 10:54 a.m. and Oct. 10, 2012, 10:54 a.m.

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  • 4326 mentions between Sept. 26, 2012, 10:54 a.m.
  • and the end of the race at Oct. 10, 2012, 10:54 a.m.