1. The Structure of Scientific Revolutions. Enlarged. International Encyclopedia of Unified Science;Kuhn,1970
2. C. Nickson Precautionary Principle and the Kehoe Principle n.d. https://litfl.com/precautionary-principle-and-the-kehoe-principle/
3. Clair Patterson and Robert Kehoe's paradigm of "show me the data" on environmental lead poisoning;Nriagu;Environ Res,1998
4. Needleman H.L. History of Lead Poisoning in the World. n.d. https://www.biologicaldiversity.org/campaigns/get_the_lead_out/pdfs/health/Needleman_1999.pdf
5. The removal of lead from gasoline: historical and personal reflections;Needleman;Environ Res,2000