I think the idea is interesting and will contribute to our knowledge once developed. You should first make a general review of the existing literature on the subject, and then design a prospective study to validate the hypothesis. It would be interesting to investigate the existing tools to evaluate the work environment and the workers' subjective perception of it (validated questionnaires, etc...) and to define very well the control(s) group (another pediatric hospitalization service?). There are many relevant variables, such as the professional level (junior vs senior), the years dedicated to pediatric oncology, if the work is developed exclusively in that area or the care load. I encourage you with the project.