| prov:value
| - Illicit drug users have learned to falsify urine screening tests by in vitro adulteration of urine sample by the addition of several readily available agents, including household products; i.e., Nacl, soap, such as hand or dish soap, bleach, finger nail polish remover, vinegar, Drano, NaNCO3, Visine, fingernail polish, Gold Seal Tea (available in natural food stores), or hydrogen peroxide (H2 O2),
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