https://c19ivm.org/ https://c19ivm.org/ - 83% average prophylaxis. Which of the 93 studies do you have trouble with, what specifically in each of those studies

https://c19ivm.org/ https://c19ivm.org/ - 83% average prophylaxis. Which of the 93 studies do you have trouble with, what specifically in each of those studies, and how much does that change the numbers/conclusions such as 83% average prophylasxis rate?