Interactive Effects of the Carbon Paper, Sodium Bicarbonate and Oral Contraceptive Pills on Morphine Urine Test
Abstract Background and objectives: A major problem for labs.esp.medico legal centers is drug test false positive and negative results.Using carbon paper, sodium bicarbonate or oral contraceptive pills (OCP) are common among addict people to make the results negative.Therefore, we decided to evaluate the effect of carbon puffy spa headband paper, s