Ravensbergen, S. J., Nellums, L. B., Hargreaves, S., Stienstra, Y., & Friedland, J. S. (2019). National approaches to the vaccination of recently arrived migrants in Europe: A comparative policy analysis across 32 European countries. Travel Med Infect Dis.

Ravensbergen, Sofanne J., Laura B. Nellums, Sally Hargreaves, Ymkje Stienstra, και Jon S. Friedland. "National Approaches to the Vaccination of Recently Arrived Migrants in Europe: A Comparative Policy Analysis Across 32 European Countries." Travel Med Infect Dis 2019.

Ravensbergen, Sofanne J., et al. "National Approaches to the Vaccination of Recently Arrived Migrants in Europe: A Comparative Policy Analysis Across 32 European Countries." Travel Med Infect Dis 2019.