1. Kusurkar RA, Van der Burgt S, Ulviye I, Mak-Van der Vossen M, Wilschut J, Wouters A, et al. Burnout and engagement among PhD students in medicine: the BEeP study. Perspect Med Educ. 2020. https://doi.org/10.1007/s40037-020-00637-6.
2. Levecque K, Anseel F, De Beuckelaer A, Van der Heyden J, Gisle L. Work organization and mental health problems in PhD students. Res Policy. 2017;46:868–79.
3. Mattijssen L, Van Vliet N, Van Doorn T, Kanbier N, Teelken C. PNN PhD Survey: Asking the relevant questions. Mental wellbeing, workload, burnout, research environment, progress of the PhD project, considering to quit. Promovendi Netwerk Nederland. 2020. https://hetpnn.nl/wp-content/uploads/2020/08/PNN-PhD-Survey-report-Wellbeing.pdf. Accessed 29 Oct 2020.
4. Woolston C. PhDs: the tortuous truth. 2019. https://www.nature.com/articles/d41586-019-03459-7. Accessed 13 Nov 2019.
5. Sverdlik A, Hall NC, McAlpine L, Hubbard K. The PhD experience: a review of the factors influencing doctoral students’ completion, achievement, and well-being. Int J Dr Stud. 2018;13:361–88.