Self-collection means swabbing your vagina to get a sample of cells to test in the lab. In this case, the sample is used to ...

This encyclopedic article outlines evidence-based laboratory tests that are most useful for establishing individualized ...

Cannabis drug tests measure tetrahydrocannabinol (THC) and its metabolites, which can stay in your body long after the “high” fades. Detection ranges from hours in blood or saliva to weeks or months ...