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Background and purpose

Recent studies suggested an increased incidence of cerebral venous thrombosis (CVT) during the coronavirus disease 2019 (COVID-19) pandemic. We evaluated the volume of CVT hospitalization and in-hospital mortality during the 1st year of the COVID-19 pandemic compared t...
Despite the f0(980) hadron having been discovered half a century ago, the question about its quark content has not been settled: it might be an ordinary quark-antiquark ( qq¯ ) meson, a tetraquark ( qq¯qq¯ ) exotic state, a kaon-antikaon ( KK¯ ) molecule, or a quark-antiquark-gluon ( qq¯g...
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