| bLf | Bovine lactoferrin |
| RS | Restraint Stress |
| TBL | Tracheobronchial lavages |
| S-IgA | Secretory Immunoglobulin A |
| APC | Antigen Presenting Cells |
| COPD | Chronic Obstructive Pulmonary Disease |
| pIgR | Polymeric Immunoglobulin Receptor |
| mIgA | Monomeric ImmunoglobulinA |
| dIgA | Dimeric ImmunoglobulinA |
| SC | Secretory component |
| MTB | Mycobacterium tuberculosis |
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