%0 Journal Article %A Arthur L Caplan %A Jerrold L Abraham %T Ethical considerations for protecting the options of subjects in primary epidemic vaccine trials %D 2021 %R 10.1136/medethics-2020-106851 %J Journal of Medical Ethics %P 360-360 %V 47 %N 5 %U https://jme.bmj.com/content/medethics/47/5/360.full.pdf