1. Are cannabinoids detected in hair after washing with cannabio shampoo?;Cirimele;J. Annal. Toxicol.,1999
2. COLIPA, 1987, The European Cosmetic, Toiletry and Perfumery Association, Survey of Cosmetic Usage. Submitted to the Scientific Committee on Cosmetology, 1992.
3. European Commission, 1996, Technical Guidance Document in Support of Commission Directive 93/67/EEC on Risk Assessment for New Notified Substances and Commission Regulation (EC) No 1488/94 on Risk Assessment for Existing Substances., Office of Official Publications of the European Communities, ISBN 92-827-8011-2.
4. Criteria for the development of a data-base for safety evaluation of fragrance ingredients;Ford;Regul. Pharmacol. Toxicol.,2000
5. Quantity of allergen per unit area is more important than concentration in effective patch testing;Fowler;Am. J. Contact Dermatitis,1995