Quick saliva test can reveal cannabis use over the past 12 hours

A sample of saliva placed on a strip and analysed with a smartphone camera can reveal if a person has ingested cannabis in the past 12 hours

Landwebs Landwebs
Oct 23, 2021 - 07:00
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Quick saliva test can reveal cannabis use over the past 12 hours
A sample of saliva placed on a strip and analysed with a smartphone camera can reveal if a person has ingested cannabis in the past 12 hours
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