“…With reference to acceptable risk and burden for children involved in clinical research, Greece, Ireland, Italy, and Belgium would seem to follow the more liberal Directive (requiring "minimising" risk and burden, also if there is only group benefit). The Netherlands, France and Finland seem to follow the stricter Additional Protocol on Biomedical research [22], that requires minimal risk and burden if there is only group benefit [33,[46][47][48][49][50].…”