1) 到底是有效还是无效? - 赵泠的回答 - 知乎
2) Spille, L., Fendel, J.C., Seuling, P.D. et al. Open-label placebos—a systematic review and meta-analysis of experimental studies with non-clinical samples. Sci Rep 13, 3640 (2023). https://doi.org/10.1038/s41598-023-30362-z s41598-023-30362-z.pdf