{"document_url": "https://en.wikipedia.org/wiki/Rudolf_Krefting"}
Norwegian dermatologist
Rudolf Waldemar Rømeling Krefting (3 February 1860 – 17 August 1942) was a Norwegian dermatologist. He was born in Kvikne. He is particularly known for his studies of the chancroid and the coccobacillus haemophilus ducreyi. He was the father of Kristian Krefting.