[Ensuring a permanent communication between the frontal & nasal sinuses].
D005626:Frontal Sinus / Q000601:surgery*; D006801:Humans; D009666:Nose; D010256:Paranasal Sinuses / Q000601:surgery*
FRONTAL SINUS/surgery; PARANASAL SINUSES/surgery
Zajistĕní trvalé komunikace mezi celní a nosní dutinou.