1. Willis T. De Anima Brutorum. Oxford: Theatro Sheldoniano, 1672:404–6.
2. Erb W. Zur casuistik der bulbaren lahmungen. Uber einen neuen wahrscheinlich bulbaren symptom-complex. Arch Psychiatr Nervenkr. 1879:336–50.
3. Campbell H, Bramwell E. Myasthenia gravis. Brain. 1900:277–336.
4. Walker MB. Treatment of myasthenia gravis with physostigmine. Lancet. 1934;1:1200–1.
5. Chang CE, Lee CY. Isolation of neurotoxins from the venom of Bungarus multicinctus and their modes of neuromuscular blocking action. Arch Pharmacodyn Ther. 1962;144:241–57.