However, pulmonary fibrosis can also appear without any known cause, then termed "idiopathic".
In this case, it is termed "idiopathic". However, pulmonary fibrosis can also appear without any known cause.
However, pulmonary fibrosis can also appear without any known cause. In this case, it is termed "idiopathic".
However, pulmonary fibrosis can also appear without any known cause. In this case, it is termed "idiopathic".