Swigris, J. J., Brown, K. K., Behr, J., du Bois, R. M., King, T. E., Raghu, G., & Wamboldt, F. S. (2009). The SF-36 and SGRQ: Validity and first look at minimum important differences in IPF.

Swigris, Jeffrey J., Kevin K. Brown, Juergen Behr, Roland M. du Bois, Talmadge E. King, Ganesh Raghu, ja Frederick S. Wamboldt. The SF-36 and SGRQ: Validity and First Look At Minimum Important Differences in IPF. 2009.

Swigris, Jeffrey J., et al. The SF-36 and SGRQ: Validity and First Look At Minimum Important Differences in IPF. 2009.