Crespi, Valeria, Ramòna Consuèlo Maio, Giovanni Veronesi, Francesco Gianfagna, Stefano Taborelli, and Marco Mario Ferrario. 2015. “Workplace Drug Testing on Urine Samples: Evidence for Improving Efficacy of a First-Level Screening Programme”. La Medicina Del Lavoro | Work, Environment and Health 106 (5): 374-85. https://doi.org/10.23749/mdl.v106i5.4328.