Gene therapy products, namely, non-lipid polymer based nanoparticles for gene therapy; gene therapy products, namely polymer-based nanoparticles for medical, veterinary and pharmaceutical purposes; nucleic acid-containing products, namely RNA and DNA, for medical or veterinary purposes; gene therapy products for the treatment of cancer, metabolic diseases or disorders, neurodegenerative diseases or disorders, cardiovascular diseases or disorders, infectious diseases, or inflammatory diseases ...