Urticaria and/or angioedema secondary to mRNA COVID‐19 vaccines: Updates from a United States case registry. Issue 1 (1st August 2022) - Anvari, Sara; Samarakoon, Upeka; Fu, Xiaoqing; Jaggers, Jordan; Gonzalez‐Estrada, Alexei; Chong, Hey Jin; Van Meerbeke, Sara W.; Petrov, Andrej A.; Khan, David A.; Freeman, Esther E.; Banerji, Aleena; Blumenthal, Kimberly G.