Here below are the publications (1) participated by Carola Catanese using the term string preceding (as cross-checked throughout PubMed, counted from 2020, including only Ticino affiliations).
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1) CT evaluation of lung infiltrates in the two months preceding the Coronavirus disease 19 pandemic in Canton Ticino (Switzerland): were there suspicious cases before the official first case?
La radiologia medica, aprile 2022