Gaudiano, Maria Cristina, et al. “Health Risks Related to Illegal and on-Line Sale of Drugs and Food Supplements: Results of a Survey on Marketed Products in Italy from 2011 to 2013”. Annali dell’Istituto Superiore Di Sanità, vol. 52, no. 1, Mar. 2016, pp. 128-32, https://annali.iss.it/index.php/anna/article/view/104.