While the importance of cigarette smoking in the progression of idiopathic pulmonary fibrosis remains controversial, case control studies among patients with the disease support the current findings in the familial form of the disease as well as sporadic forms, and consistently indicate that cigarette smoking is a risk factor for the development of the disease,  -   Mark Steele     Quotes
While the importance of cigarette smoking in the progression of idiopathic pulmonary fibrosis remains controversial, case control studies among patients with the disease support the current findings in the familial form of the disease as well as sporadic forms, and consistently indicate that cigarette smoking is a risk factor for the development of the disease, Mark Steele
 Control