top | item 30016681 (no title) a45a33s | 4 years ago the covid vaccine trials had no control groups either discuss order hn newest rsfern|4 years ago They were all doubly blinded placebo controlled trials…Are you talking about how they unblinded the study after efficacy results started coming in? a45a33s|4 years ago yes i am talking about how they got rid of the control groups once it appeared to be working
rsfern|4 years ago They were all doubly blinded placebo controlled trials…Are you talking about how they unblinded the study after efficacy results started coming in? a45a33s|4 years ago yes i am talking about how they got rid of the control groups once it appeared to be working
a45a33s|4 years ago yes i am talking about how they got rid of the control groups once it appeared to be working
rsfern|4 years ago
Are you talking about how they unblinded the study after efficacy results started coming in?
a45a33s|4 years ago