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. 2019 Jan 5;20:8. doi: 10.1186/s12891-018-2391-1

Table 2.

Semi-quantitative evaluation of structural changes in IFP: Fibrosis

Score 0 1 2 3
Perivascular Normal, 0–20% of total area Low, 20–40% of total area High, 40–60% of total area Extensive, > 60% of total area
IFP body Normal, 0–20% of total area Low, 20–40% of total area High, 40–60% of total area Extensive, > 60% of total area
IFP surface Normal, 0–20% of total area Low, 20–40% of total area High, 40–60% of total area Extensive, > 60% of total area