Why a need for MTAs?Research using HBMs should have societal benefits and contribute to public health objectives. [1] It was common practice for researchers to share research materials freely, as scientific research relies, inter alia, on the ability of researchers to replicate and test published research results. In the context of health research, such an exercise would require access to the relevant biological material and/or This open-access article is distributed under Creative Commons licence CC-BY-NC 4.0.