[Studies on gas formation in the upper maxillary sinus in chronic parasinusitis].
D002245:Carbon Dioxide / Q000378:metabolism; D002908:Chronic Disease; D005260:Female; D005740:Gases / Q000378:metabolism*; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism; D010102:Oxygen Inhalation Therapy; D012852:Sinusitis / Q000378:metabolism*
D005740:Gases; D002245:Carbon Dioxide; D010100:Oxygen