Drewes, Y. M., Blom, J. W., Assendelft, W. J. J., Stijnen, T., den Elzen, W. P. J., & Gussekloo, J. (2014). Variability in Vulnerability Assessment of Older People by Individual General Practitioners: A Cross-Sectional Study. PLoS One.

Drewes, Yvonne M., Jeanet W. Blom, Willem J. J. Assendelft, Theo Stijnen, Wendy P. J. den Elzen, i Jacobijn Gussekloo. "Variability in Vulnerability Assessment of Older People By Individual General Practitioners: A Cross-Sectional Study." PLoS One 2014.

Drewes, Yvonne M., et al. "Variability in Vulnerability Assessment of Older People By Individual General Practitioners: A Cross-Sectional Study." PLoS One 2014.