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Risk factors in pulmonary fibrosis
| External risk factors | Internal risk factors | Co-morbidities |
|---|---|---|
| Cigarette smoking | Genetics | Gastroesophageal reflux |
| Environmental pollutants | Aging | Obstructive sleep apnea |
| Air pollution | Sex | Diabetes mellitus |
| Drugs | Lung microbiome | Virus infection |
| Certain occupations | Chronic aspiration | |
| Cancer treatments (radiation treatments) |
