Severe acute myositis and myocarditis on initiation of 6-weekly pembrolizumab post-COVID-19 mRNA vaccination ============================================================================================================ * Robert A Watson * Weiyu Ye * Chelsea A Taylor * Elsita Jungkurth * Rosalin Cooper * Orion Tong * Tim James * Brian Shine * Monika Hofer * Damian Jenkins * Robert Pell * Eleni Ieremia * Stephanie Jones * David Maldonado-Perez * Ian S D Roberts * Nicholas Coupe * Mark R Middleton * Miranda J Payne * Benjamin P Fairfax