Simplify the following text for a Grade 10 native English-speaking person.
Original: He received the Nobel Prize in Physiology or Medicine in 1943 with Henrik Dam for their discovery of vitamin K ( K from `` Koagulations-Vitamin '' in German ) and its chemical structure .
Simplified: He won the 1943 Nobel Prize in Physiology or Medicine , along with Henrik Dam , for the discovery of Vitamin K.