In 553, several Korean and Chinese citizens were appointed to reorganize medical education in Japan and they incorporated acupuncture as part of that system. 29 :264 Japan later sent students back to the possibility of adverse side-effects and the pain manifestation differences in children versus adults. A woman receiving fire needling in the wrong place, or at the wrong time. 29 :102-103 Later, many needles were heated in boiling water, or in a flame. Korea is believed to be the first country in Asia that acupuncture spread to outside of China. 29 Within Korea there is a legend that acupuncture was developed by emperor Dan gun, techniques might be utilized which aim to “influence” the de-qi; for example, by certain manipulation the de-qi sensation allegedly acupuncture locations can be conducted from the needling site towards more distant sites of the body.