John Langdon Down
John Langdon Haydon Langdon-Down (1828 - 1896) was an English
Description What is the actual eponymous medical sign/syndrome/repair/classification… History 1838 – Jean Etienne Dominique Esquirol (1772-1840), a founder of modern alienism (psychiatry). 1846 – Edouard Onesimus Séguin (1812–1880) was one of the first to outline a complete plan for the…