Stem cells for medical purposes; stem cells for veterinary purposes; stem cells for use in regenerative medicine; secretome derived from stem cells for medical purposes; secretome derived from stem cells for veterinary purposes; secretome derived from stem cells for use in regenerative medicine; naïve and modified exosomes derived from stem cells for medical purposes; naïve and modified exosomes derived from stem cells for veterinary purposes; naïve and modified exosomes derived from stem ...