Immune thrombocytopenia associated with COVID-19 mRNA vaccine tozinameran – a clinical case and global pharmacovigilance data - Raphael Battegay; Ioanna Istampoulouoglou; Andreas Holbro; Andreas Buser; Julia R. Hirsiger; Jens Eckstein; Christoph T. Berger; Sarah Koechlin; Anne B. Leuppi-Taegtmeyer (Swiss Medical Weekly, 2021)