HOXD13 and non-small cell lung carcinoma: We investigated the relationship between the expression levels of sTIM‐3, sCD137, sCD27, sLAG‐3, sIDO, Spd‐L2, sCD152, sCD80, sPD‐1, and the clinicopathological features (age, gender, smoking history, histological subtype, and TNM stage) of NSCLC patients.