Additional file 2 of Decreased sphingomyelin (t34:1) is a candidate predictor for lung squamous cell carcinoma recurrence after radical surgery: a case-control study

Additional file 2: Sheet 1. The full list of area values for the 1745 lipid species identified. Sheet 2. List of the intensity ratios according to the lipid head groups. Sheet 3. List of the intensity ratios according to the sphingomyelin species

附加文件2：
工作表1：已鉴定的1745种脂质（lipid）的面积值完整列表。
工作表2：基于脂质头部基团的强度比列表。
工作表3：基于鞘磷脂（sphingomyelin）物种的强度比列表。