TY  - GEN
AU  - Ehab Kamel Seffien
AU  - Hazem Mohamed Dewidar , 
AU  - Mohamed Ibrahim Abdelmageid , 
AU  - Sadik Wafeek Zaher , 
TI  - Effect of the external nasal dilators on the nasal patency / 
PY  - 1999///
CY  - Cairo : 
PB  - Ehab Kamel Seffien , 
N1  - Thesis (M.Sc.) - Cairo University - Faculty Of Medicine - Department Of E.N.T
ER  -