University of Texas at Austin - Department of Neurology, University of Otago - Department of Medicine, Monash University, Cedars-Sinai Medical Center, affiliation not provided to SSRN, affiliation not provided to SSRN, Ascension Health, Monash University, Ambulance Victoria, Royal Adelaide Hospital, Royal Adelaide Hospital, Royal Adelaide Hospital, New Hanover Regional Medical Center, New Hanover Regional Medical Center, Canterbury District Health Board, affiliation not provided to SSRN, Cedars-Sinai Medical Center, Cedars-Sinai Medical Center, University of Otago - Christchurch Hospital, Cedars-Sinai Medical Center, Torrance Memorial Medical Center, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Melbourne - Royal Melbourne Hospital and University of Otago - Christchurch Hospital