Major pharma companies rely mostly on buying innovation, but do not abandon own R&D completely.<p>Original paper:<p><a href="https://www.alexandria.unisg.ch/entities/publication/f42a3e93-6c61-490d-b7a1-c324a7227d7d/details" rel="nofollow noreferrer">https://www.alexandria.unisg.ch/entities/publication/f42a3e9...</a>