Howick, J (2009). "Questioning the Methodologic Superiority of 'Placebo' over 'Active' Controlled Trials". The American Journal of Bioethics. 9 (9): 34–48. doi:10.1080/15265160903090041. PMID19998192. S2CID41559691.
Anderson, JA (2006). "The ethics and science of placebo–controlled trials: Assay sensitivity and the Duhem–Quine thesis". Journal of Medicine and Philosophy. 31 (1): 65–81. doi:10.1080/03605310500499203. PMID16464770.
Howick, J (2009). "Questioning the Methodologic Superiority of 'Placebo' over 'Active' Controlled Trials". The American Journal of Bioethics. 9 (9): 34–48. doi:10.1080/15265160903090041. PMID19998192. S2CID41559691.
Anderson, JA (2006). "The ethics and science of placebo–controlled trials: Assay sensitivity and the Duhem–Quine thesis". Journal of Medicine and Philosophy. 31 (1): 65–81. doi:10.1080/03605310500499203. PMID16464770.
Howick, J (2009). "Questioning the Methodologic Superiority of 'Placebo' over 'Active' Controlled Trials". The American Journal of Bioethics. 9 (9): 34–48. doi:10.1080/15265160903090041. PMID19998192. S2CID41559691.