Frédéric Justin Collet
Frédéric Justin Collet (1870–1964), Lyon physician and ENT professor; described the 1915 skull-base palsy of CN IX–XII later known as Collet–Sicard syndrome
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Jean-Athanase Sicard
Jean-Athanase Sicard (1872–1929): French neurologist; caudal epidural pioneer (1901), Lipiodol epidurography/myelography with Forestier, and Collet–Sicard syndrome.