Shikino, K., Nishizaki, Y., Fukui, S., Yamamoto, Y., Shimizu, T., Nagasaki, K., Kobayashi, H., Tokuda, Y. (2026). Perceived factors in high-quality residency training programs in Japan: a thematic analysis of perspectives from directors of high-performing programs. Scientific Reports. https://doi.org/10.1038/s41598-026-60361-9