Comparisons between Four Groups according to Initial Spirometric values in smoke-exposed subjects without NAFLD at baseline.

Comparisons between Four Groups according to Initial Spirometric values in smoke-exposed subjects without NAFLD at baseline.针对基线状态下无非酒精性脂肪性肝病（NAFLD）的吸烟暴露受试者，基于初始肺量测定值开展的四组间比较