抄録
Research participants are generally granted the freedom to withdraw from participating in a medical research at any time without providing any reason. However, this generally accepted practice of allowing participants the inalienable right to withdraw is not necessarily an ethical requirement. Ethics provides room to restrict a participants' freedom to withdrawal under certain conditions. Taking into consideration the current state of consent withdrawal in actual biobanking research and the possibility of eliminating any reliance on researchers' discretion, it is more appropriate both ethically and practically to limit the duration to 6 months in which participants are guaranteed the inalienable right to withdraw from a study.
