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GET /Surveys
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/
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:Survey_id
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/
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GET /Surveys/:Survey_id/PSIDRef - http://api.spectrumsurveys.com/suppliers/v2/Surveys/:Survey_id/PSIDRef
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PureSpectrum offers its buyers the ability to recontact respondents using their persistent PureSpectrum Id (PSID). The same mechanism is also used by suppliers to understand which respondents to exclude due to deduplication.
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