Methods 21 patients of overlap syndrome and 20 patients with obstructive sleep apnea syndrome(OSAS) were studied by neck circumference,body mass index(BMI),lung function and polysomnography(PSG).

• 方法对21例重叠综合征患者及20例OSAS患者颈围、体重指数、肺功能及多导睡眠图进行研究。