Thayer, Z. M., Buffarini, R., Tovo-Rodrigues, L., Oliveira, I. O. D., Hallal, P. C., Rivera, L. M., Silveira, M. F. (2025). Evolved birth physiology meets modern birth practice: Sustained effects of planned cesarean delivery on child hair cortisol in Brazil. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2519365122