Mostafa S M
Proc R Soc Med. 1976 Nov;69(11):793-5. doi: 10.1177/003591577606901101.
The incidence of variation in the subglottic size was investigated in 3304 infants and children. A mild degree of congenital subglottic stenosis was found in 0.91% and a moderate degree of stenosis in 0.06% of the patients. A mild degree of congenital subglottic enlargement was noted in 0.7% and moderate enlargement in 0.06% of the patients.
对3304名婴幼儿进行了声门下尺寸变异发生率的调查。发现0.91%的患者存在轻度先天性声门下狭窄，0.06%的患者存在中度狭窄。0.7%的患者存在轻度先天性声门下扩大，0.06%的患者存在中度扩大。
