Survey of paranasal sinuses X-ray. Ethnological clinical analysis of 1,000 Chinese, Indians, Malays, and "others".
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005006:Ethnicity; D005260:Female; D006801:Humans; D008296:Malaysia; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging*; D011859:Radiography; D012737:Sex Factors; D014329:Tropical Climate