Volume & Issue: Volume 51, Issue 3, July 2022, Pages 1325-1866 
ANATOMICAL VARIATIONS OF THE FRONTAL RECESS AND ITS SURGICAL IMPORTANCE IN FRONTAL SINUS PROBLEMS

Pages 1811-1824

Nasr Mosaad Nasr El-Seidy; Yahia Mohamed Dawood; Mokhtar Ragab Ramadan; Ayman Abd Al-Aziz Al-Shahally