The Ulster Medical Society was formed in Belfast, County Antrim, present-day Northern Ireland, in 1862 through the amalgamation of two older societies, the Belfast Medical Society which was founded in 1806, and the Belfast Clinical and Pathological Society which was founded in 1853. The UMS publishes a quarterly journal, Ulster Medical Journal, available free on the Society's internet site.
References
Ulster Medical Society Wikipedia(Text) CC BY-SA