From: Effect of addition of platelet-rich fibrin to tragal perichondrium graft in the endoscopic trans-canal myringoplasty
Group A (graft with PRF)
Group B (graft without PRF)
X2
P value
Size of perforation
Small
No.
8
5
1.092
.579
%
40.0%
25.0%
Medium
7
35.0%
Large