Here below are the publications (2) participated by Maria Luce Caputo using the term string catheter (as cross-checked throughout PubMed, counted from 2020, including only Ticino affiliations).
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1) Long-term outcome of catheter ablation for atrial fibrillation in patients with severe left atrial enlargement and reduced left ventricular ejection fraction
EP Europace, 8 novembre 2021

2) High-density mapping in patients undergoing ablation of atrial fibrillation with the fourth-generation cryoballoon and the new spiral mapping catheter
EP Europace, https://academic.oup.com/europace/advance-article-abstract/doi/10.1093/europace/euaa160/5896132?redirectedFrom=fulltext