Ai, Tao A historical overview of magnetic resonance imaging, focusing on technological innovations. [electronic resource] - Investigative radiology Dec 2012 - 725-41 p. digital Publication Type: Historical Article; Journal Article; Review ISSN: 1536-0210 Standard No.: 10.1097/RLI.0b013e318272d29f doi Subjects--Topical Terms: History, 20th CenturyHistory, 21st CenturyInventions--historyMagnetic Resonance Imaging--history