Edward Tyson
Edward Tyson (20 January 1651 – 1 August 1708) was a British scientist and physician, commonly regarded as the founder of modern comparative anatomy, which compares the anatomy between species.
Nils Rosén von Rosenstein
Nils Rosén von Rosenstein (11 February 1706 – 16 July 1773) was a Swedish physician. He is considered the founder of modern pediatrics, while his work "The diseases of children, and their remedies" is considered to be "the first modern textbook on the subject".