- Clara Cell Protein 16 (CC16)
- Bradykinin (BK)
- Pulmonary Surfactant Associated Protein A1 (SFTPA1)
- Phosphatidylglycerol (PG)
- Mucin 20 (MUC20)
- Alpha-1-Antichymotrypsin (a1ACT)
- Mucin 3 (MUC3)
- Glypican 1 (GPC1)
- Mucin 4 (MUC4)
- Surfactant Associated Protein D (SPD)
- Heat Shock 70kDa Protein 1 Like Protein (HSPA1L)
- Claudin 18 (CLDN18)
- Pro-Gastrin Releasing Peptide (ProGRP)
- Cytokeratin 18 (CK18)
- Cytokeratin 20 (CK 20)