Yantao Song Zexuan Ji Quan-Sen Sun An extension Gaussian mixture model for brain MRI segmentation. 4711-4714 2014 EMBC https://doi.org/10.1109/EMBC.2014.6944676 https://www.wikidata.org/entity/Q48384544 conf/embc/2014 db/conf/embc/embc2014.html#SongJS14