With the increasing number of marijuana users day by day, the need for the drug test became important. With the evolution of self test kits which are easy to use, people are using them on a wide range. While using these kind of test kits it is important to know the cutoff points and when the test will be called as positive. Then only we can come to conclusions relating to the test. For most of the laboratory tests and the instant tests like the blood, urine, saliva and the…
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