Time period is set incorrectly
You can only get 30 days of history on this type of hashtag (conference, disease, other).
And you can only analyze the last 30 days. Only Patient and Community Tweet Chats are supported for free by Symplur without such limits.
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Free Analytics and Transcripts for #VMIACConf17
Symplur has over 1,000 #VMIACConf17 tweets going back to October 2017.
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