From: Recurrent respiratory papillomatosis: clinical presentation, treatment modalities, and outcomes in Khartoum state
Frequency
%
Valid percent
Cumulative percent
Valid
Glottic
39
75.0
Supraglottic
1
1.9
76.9
Subglottic
7
13.5
90.4
Transglottic
5
9.6
100.0
Total
52