köken: Named after English physician John Langdon Haydon Down (1828–1896), who first described the condition as a distinct form of mental disability in the 1860s.
köken: Named after John L.H. Langdon-Down (1828-1896), an English physician who described it in the late 1800s.
Etimoloji
Named after English physician John Langdon Haydon Down (1828–1896), who first described the condition as a distinct form of mental disability in the 1860s.