Ernst Gräfenberg Ernst Gräfenberg Ernst Gräfenberg (September 26, 1881 in Adelebsen near Göttingen, Germany – 28 October 1957 in New York City, United States) was a German-born physician (medical doctor) and scientist. He is known for developing the intrauterine device (IUD), and for his studies of the role of the woman's urethra in orgasm. The G-spot is named after him. Gräfenberg studied medicine in Göttingen and Munich, earning his doctorate on 10 March 1905. He began working as a doctor of ophthalmology at the university of Würzburg, but then moved to the Department of Obstetrics and Gynaecology at the University of Kiel,
Heinrich Werner (physician) of infectious diseases. Werner is remembered for his description of trench fever during an outbreak of the disease in World War I. The disorder is sometimes referred to as "Werner–His disease", named in conjunction with Swiss anatomist Wilhelm His, Jr., who also described the malady. The disease is caused by the parasite "Rickettsia quintana", and transmitted to humans by the body louse "Pediculus humanus corporis". During his career, Werner published a number of articles on tropical and parasitic diseases. Heinrich Werner (physician) Heinrich Werner (14 May 1874 – 1946) was a German physician born in Mühlhausen, Saxony. He studied medicine