1. Department of Health. Instruction 4/2015, of 10 March, functional framework and responsibilities on tissue donation,2015
2. Guide to the quality and safety of tissues and cells for human application, 3rd ed. European Directorate for the Quality of Medicines & Health Care of the Council of Europe (EDQM);Keitel,2017
3. Royal Decree-Act 9/2017, of 26 May, transposing EU directives in the fields of finance, commerce and healthcare, and on the posting of workers,2017