[Treatment of chronic frontal sinusitis].
D002908:Chronic Disease; D004194:Disease; D005626:Frontal Sinus; D015522:Frontal Sinusitis; D006801:Humans; D010254:Paranasal Sinus Diseases; D012852:Sinusitis / Q000628:therapy*
FRONTAL SINUS/diseases; SINUSITIS/therapy