The increasing commercialisation of science is restricting access to vital scientific knowledge and delaying the progress of science, claim researchers on bmj.com today.
Varuni de Silva and Raveen Hanwella from the University of Colombo in Sri Lanka argue that copyrighting or patenting medical scales, tests, techniques and genetic material, limits the level of public benefit from scientific discovery.
For example, they found that many commonly used rating scales are under copyright and researchers have to pay for their use.



