Links
[1] https://www.sciensano.be/en/biblio/wat-zit-er-achter-poeders-kleuren-en-logos-screening-van-illegale-drugs-op-zomerfestivals
[2] https://www.sciensano.be/en/health-topics/effectiveness-and-safety-vaccines-medicines-and-health-products-quality-medical-laboratories
[3] https://www.sciensano.be/en/biblio?f%5Bauthor%5D=84603&f%5Bsearch%5D=Huysegoms%2C%20K.
[4] https://www.sciensano.be/en/biblio?f%5Bkeyword%5D=34899&f%5Bsearch%5D=illegale%20drugs
[5] https://www.sciensano.be/en/biblio?f%5Bkeyword%5D=34896&f%5Bsearch%5D=poeders
[6] https://www.sciensano.be/en/biblio?f%5Bkeyword%5D=34902&f%5Bsearch%5D=zomerfestivals