Medical Cannabis resin in the region of Madrid: Adulteration and contamination.ucm.es.2Department of Anatomy and Embryology, Departmental Section in Veterinary School, Complutense University of Madrid. Avda. Puerta de Hierro s/n, 28040, Madrid, Spain. Electronic address: pilper01 View the Original article Partage le savoir Partage le savoirBy Michael, 2 ans2 ans ago