VS-Net: Variable Splitting Network for Accelerated Parallel MRI Reconstruction. - Jinming Duan 001; Jo Schlemper; Chen Qin; Cheng Ouyang; Wenjia Bai; Carlo Biffi; Ghalib Bello; Ben Statton; Declan P. O'Regan; Daniel Rueckert (MICCAI (4), 2019)