International Society of Radiology (ISR)

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The International Society of Radiology (ISR) founded in 1925, is a non-governmental organization (NGO) that as a membership federation of national radiologist societies, acts as their chief international voice globally. It is the main advisor on all matters related to radiology and radiation protection to the World Health Organization (WHO) and the International Atomic Energy Agency (IAEA).

The ISR is headquartered in the US, sharing offices with the International Commission on Radiation Protection and Measurement (ICRP) and the US National Council on Radiation Protection and Measurement (NCRP).