The labels of each cluster were “pulmonary pathology” (cluster 0), “ct scoring” (cluster 1), “clinical outcomes” (cluster 2), “pulmonary function” (cluster 3), “angiotensin-converting enzyme” (cluster 4), “lung fibrosis” (cluster 5), “COVID-19 vaccination” (cluster 6), “cystic fibrosis” (cluster 7), “clinical feature” (cluster 8), and “elevated extracellular volume fraction” (cluster 9), respectively. Here, ACE is linked to pulmonary fibrosis.