Serotonin Exhibits Accelerated Bleomycin-Induced Pulmonary Fibrosis through TPH1 Knockout Mouse Experiments

Table 1

The inflammatory score system.

Score	Description
0	No infiltration of inflammatory cells
1	Occasionally by vein and bronchus cuff inflammatory cells infiltration
2	The majority of vein, peribronchial infiltration of inflammatory cells, inflammatory cell layer 1~5
3	The majority of vein, peribronchial infiltration of inflammatory cells, inflammatory cell layer is greater than 5