Despite recent shortages, researchers have found a helium reserve in Tanzania that could fill more than 1.2 million medical MRI scanners.
원문출처 : http://www.cnn.com/videos/world/2016/06/29/helium-discovery-tanzania-sfc-orig.cnn
원문출처 : http://www.cnn.com/videos/world/2016/06/29/helium-discovery-tanzania-sfc-orig.cnn