A wholesaler shall verify the authenticity of the unique identifier of at least the following medicinal products in his physical possession:
medicinal products returned to him by persons authorised or entitled to supply medicinal products to the public or by another wholesaler;
medicinal products he receives from a wholesaler who is neither the manufacturer nor the wholesaler holding the marketing authorisation nor a wholesaler who is designated by the marketing authorisation holder, by means of a written contract, to store and distribute the products covered by his marketing authorisation on his behalf.