Multi-Arm GlioblastoMa Australasia (MAGMA): protocol for a multiarm randomised clinical trial for people affected by glioblastoma oleh Zarnie Lwin, Eng-Siew Koh, Elizabeth H Barnes, Rosemary Harrup, Hui K Gan, Anna K Nowak, Craig Gedye, Sonia Yip, Benjamin Y Kong, Hao-Wen Sim, Jonathon Parkinson, Rosalind Jeffree, Elizabeth J Hovey, Merryn Hall, Emily Tu, Mark B Pinkham, Candace Carter, Anthony Dowling, John S Simes