Manganese-Enhanced cardiac MRI (MEMRI) tracks long-term <it>in vivo</it> survival and restorative benefit of transplanted human Amnion-Derived Mesenchymal Stem Cells (hAMSC) after... by Dash Rajesh, Kim Paul J, Matsuura Yuka, Ge Xiaohu, Ikeno Fumiaki, Lyons Jennifer K, Huang Ngan F, Metzler Scott, Nguyen Patricia, Heidary Shahriar, Parent Marie-Claude, Yamamoto Tomoaki, Cooke John, Ruiz-Lozano Pilar, Robbins Robert C, Wu Joseph C, McConnell Michael V, Yeung Alan, Harnish Phillip, Yang Phillip C