3228698 OSEM ordered subset expectation maximization 474 3228700 OSEM ordered subsets EM 15 3228709 OSEM ordered-subset-expectation-maximisation algorithm 3 3228712 OSEM operando scanning electron microscopy 2 3228715 OSEM ordered subset expected maximisation 2 3228703 OSEM 3D-OSEM algorithm: with post-filtering 1 3228714 OSEM Omnidirectional Sheath-flow Enabled Microfluidics 1 3228713 OSEM Online Social Experiences Measure 1 3228716 OSEM ordered subsets implementation of the EM algorithm 1 3228711 OSEM ordered-subset expectation maximization reconstruction technique 1 3228710 OSEM ordered-subset maximization expectation 1 3228706 OSEM ordered-subsets expectation-maximization and resolution recovery 1 3228708 OSEM organic solvent evaporation method 1 3228707 OSEM osmotic stability of the erythrocyte membrane 1 3228705 OSEM state-of-the-art method used in clinical commercial systems 1 3228704 OSEM two-dimensional-ordered subsets expectation maximization 1