From 'Tractors' to Cell Therapy Clinics: Unproven Medical Procedures by Curtis E. Margo

Curtis E. Margo warns that today's unregulated stem cell clinics mirror the quackery of the past, from Elisha Perkins's bogus "tractors" to modern snake-oil medicine. He argues consumers must stay vigilant, verifying FDA approval and relying on rigorous clinical trials before trusting new medical procedures. Read this article and find accompanying references at: https://skepticalinquirer.org/2025/08/from-tractors-to-cell-therapy-clinics-unproven-medical-procedures/ About the Author: Curtis E. Margo is an instructor of pathology and ophthalmology at the Morsani College of Medicine, University of South Florida. He is a member of the Cogan Ophthalmic History Society. Subscribe to Skeptical Inquirer: https://skepticalinquirer.org/subscribe/ Skeptical Inquirer Audio Edition is a production of the Committee for Skeptical Inquiry and the Center for Inquiry.