Baron Emil von Dungern (26 November 1867 – 4 September 1961) was a German internist.
Gustav Huguenin (July 17, 1840 - February 6, 1920) was a Swiss internist and pathologist who was a native of Krauchthal.
Harald Salvesen (born 1889) was a Norwegian medical doctor and internist, a professor at Rikshospitalet in Oslo.
Before Koplik, the German internist Carl Jakob Adolf Christian Gerhardt (1833-1902) in 1874, the Danish physician N. Flindt in 1879, and the Russian Nil Filatov (1847-1902) in 1895, had observed equivalent phenomena.
Patrick Schöffski, MD, MPH, is a board-certified internist, haematologist, and oncologist originating from Hannover, Germany, where he also received a master degree in public health at Hannover Medical School.
Scipione Riva-Rocci (7 August 1863 in Almese, Piedmont – 15 March 1937 in Rapallo) was an Italian internist and pediatrician who was a native of Almese.
A board-certified internist and addiction medicine specialist, he rose to fame as the host of the nationally syndicated radio talk show, Loveline, and star of Celebrity Rehab with Dr. Drew, of which Sex Rehab is a spinoff.