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Expression of Sema-7a (A) is increased in the blood of patients with SSc-ILD compared to normal controls and patients with SSc that lack ILD. β1 integrin is increased in SSc-ILD patients compared to control (B). Expression of Plexin C1 (C) is not significantly increased. White bar: normal subjects. Grey striped bar: SSc without ILD. Black bar: SSc-ILD. *p<0.05. **p<0.01.
