@article{article, title = {{Commentary on 'Payment in challenge studies: ethics, attitudes and a new payment for risk model'}}, publisher = {{BMJ}}, url = {{}}, year = {{2020}}, month = {{11}}, author = {{Payne R}}, doi = {{10.1136/medethics-2020-106975}}, journal = {{Journal of Medical Ethics}}, note = {{Accessed on 2025/04/17}}}