Clinical Characteristics of Post-COVID-19 Persistent Cough in the Omicron Era.

"the details of selection criteria have previously been reported and are described in supplementary data s1 .; supplementary material supplementary data s1 materials and methods"

"Disclosure: W.-J.S. declares grants from Merck Sharp & Dohme Corp. and AstraZeneca, consulting fees from Merck, AstraZeneca, Shionogi and GSK, and lecture fees from Merck, AstraZeneca, GSK and Novartis. Other authors declare that they have no competing interests."

"This work was partly supported by a research grant from the Investigator-Initiated Studies Program of Merck Sharp & Dohme Corp. The opinions expressed in this paper are those of the authors and do not necessarily represent those of Merck Sharp & Dohme Corp. Disclosure: W.-J.S. declares grants from Merck Sharp & Dohme Corp. and AstraZeneca, consulting fees from Merck, AstraZeneca, Shionogi and GSK, and lecture fees from Merck, AstraZeneca, GSK and Novartis. Other authors declare that they have no competing interests."