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2. (a) Pelletier PJ, Caventou JB (1818) Ann Chim Phys 8:323
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4. Regnault V (1838) Ann 26:17–35
5. (a) For a historical review of the chemistry of strychnine, see: Smith GF (1965) In: Manske RH (ed) The alkaloids, vol 8. Academic, New York, NY, pp 591-671