PLoS One
http://www.plosone.org/
[Accessed 2 May 2020]

Exploring factors improving support for vaccinations among Polish primary care physicians
Pawel Stefanoff, Tomasz Sobierajski, Helena Bulinska-Stangrecka, Ewa Augustynowicz
Research Article | published 01 May 2020 PLOS ONE
https://doi.org/10.1371/journal.pone.0232722