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Spit only!
Sorry, there was a problem. Please try again later.It's spit... a lot of spit! The tube looks larger than what the sample size actually is, so don't be intimidated by the size. But it's most definitely spitting in a cup. And you have to avoid drinking, eating, and smoking for at least 30 minutes prior.
Sorry, there was a problem. Please try again later.It is a spit test.
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