Lippincott Williams & Wilkins

test. Take this seriously; false positives run high. If you know that. there will be a GC/MS confirmation test, you can disregard this section. It would be too lengthy to list all of the false positives here. Jeff. Nightbyrd's "Conquering the Urine Tests" pamphlet lists a majority of the. false positives in detail. (If you are clean, want to ... ................
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