1. Batson, C. D. (1991). The altruism question. Hillsdale: Lawrence Erlbaum Associates, Publishers.
2. Becker, H. S., Geer, B., Hughes, E. C., & Strauss, A. L. (1961). Boys in white. New Brunswick: Transaction Books.
3. Colliver, J. A., Willis, M. S., Robbs, R. S., Cohen, D. S., & Swartz, M. H. (1998). Assessment of empathy in a standardized-patient examination. Teaching and Learning in Medicine, 10(1), 8–11.
4. Colliver, J. A., Conlee, M. J., Verhulst, S. J., & Dorsey, K. (2010). Reports of the decline of empathy during medical education are greatly exaggerated: a reexamination of the research. Academic Medicine, 85(4), 588–593.
5. Coombs, R. H., & Vincent, C. E. (1971). Psychosocial aspects of medical training. Springfield: Charles C. Thomas, Publisher.