Ryke Geerd Hamer (17 May 1935 – 2 July 2017) was a German ex-physician and the originator of Germanic New Medicine (GNM), also formerly known as German New Medicine and New Medicine, a system of pseudo-medicine that purports to be able to cure cancer. The Swiss Cancer League described Hamer's approach as "dangerous, especially as it lulls the patients into a false sense of security, so that they are deprived of other effective treatments." Hamer held a licence to practice medicine from 1963 until 1986, when it was revoked for malpractice. His system came to public attention in 1995, when the parents of a child suffering from cancer refused medical treatment (chemical therapy or chemotherapy) in favour of Hamer's methods. Hamer was charged with malpractice and imprisoned in several European countries. Hamer claimed that his method was a "Germanic" alternative to mainstream clinical medicine, which he claimed is part of a Jewish conspiracy to decimate non-Jews. Biography Ryke Geerd Hamer was born in Mettmann, North Rhine-Westphalia, Germany, in 1935. He received his high school diploma at age 18 and started medical and theological studies in Tübingen, where he met Sigrid Oldenburg, a medical student who later became his wife. At age 20, Hamer passed the preliminary examination in medicine, and in April 1962 passed his medical state examination in Marburg, Hesse. He was granted a professional license as a doctor of medicine in 1963. After spending several years at the University Clinics of Tübingen and Heidelberg, Hamer completed his specialization in internal medicine in 1972. He also worked in several practices with his wife and patented several inventions. Hamer's license to practice medicine was revoked in 1986 by a court judgment, which was reconfirmed in 2003. As he continued to practice, Hamer was investigated several times over allegations of malpractice and causing the deaths of patients. He was jailed for twelve months in Germany from 1997 to 1998, and served a prison term from September 2004 to February 2006 in Fleury-Mérogis, France, on counts of fraud and unlicensed practice of medicine. Hamer's habilitation thesis about the GNM at the University of Tübingen was rejected after multiple examinations by several members of the medical faculty, who concluded that his work lacked scientific methods and reproductibility and his arguments did not support his theories. Hamer claimed that his system was verifiable and that the University of Trnava in Slovakia had already confirmed