Doctor of Medicine (MD, from the Latin Medicinæ Doctor meaning "Teacher of Medicine") is a doctoral degree for physicians granted by medical schools. It is a professional doctorate / first professional degree (qualifying degree) in some countries, including the United States and Canada, although training is entered after obtaining from 90 to 120 credit hours of university level work (see second entry degree) and in most cases after having obtained a Bachelors Degree. In other countries, such as India, the United Kingdom, Germany, and Sri Lanka, the MD is an advanced academic research degree more similar to a PhD. In India, Britain, Ireland, and many Commonwealth nations, the medical degree is instead the MBBS i.e., Bachelor of Medicine, Bachelor of Surgery (MBChB, BM BCh, MB BCh, MBBS, BMBS, BMed, BM) and is equivalent to the MD and DO degrees in the U.S. system.

According to Sir John Bagot Glubb, Syed Faride and S. M. Imamuddin, the first medical schools to issue academic degrees and diplomas were the teaching Bimaristan (Hospitals) of the medieval Islamic world. The first of these institutions was opened in Baghdad during the time of Harun al-Rashid. They then appeared in Egypt from 872 and then in Islamic Spain, Persia and the Maghreb thereafter. Physicians and surgeons at these hospital-universities gave lectures on Medicine to medical students and then a medical diploma or degree was issued to students who were qualified to be practicing physicians.

Dahlan Iskan (born August 17, 1951) is the former CEO of Indonesia newspaper publisher, Jawa Pos Group. He was the executive director of Indonesia Power Factory, PLN, since December 23, 2009.

Wei Hong is a character in Romance of the Three Kingdoms. He first appears in Chapter 5 as a financial benefactor of Cao Cao.

Gregory House, M.D., (often simply referred to as House) is the title character and an antihero of the American television series House, played by Hugh Laurie. House is the Chief of Diagnostic Medicine at the fictional Princeton-Plainsboro Teaching Hospital in New Jersey, where he leads a team of diagnosticians. House's character has been described as a misanthrope, cynic, narcissist and curmudgeon. He is the only character to appear in all 177 episodes. The season 6 premiere is the only episode in which House is the only regular character to appear, besides Wilson (briefly).

In the series, the character's unorthodox diagnostic approaches, radical therapeutic motives, and stalwart rationality have resulted in much conflict between him and his colleagues. House is also often portrayed as lacking sympathy for his patients and having a practice allowing him the time to solve pathological enigmas. The character is partly inspired by Sherlock Holmes. A portion of the show's plot centers on House's habitual use of Vicodin to manage pain stemming from a leg infarction involving his quadriceps muscle some years earlier, an injury that forces him to walk with a cane. This addiction is also one of the many parallels to Holmes, who was a habitual user of cocaine and opium.