Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleReply to Liu and Xiong.AuthorsHeng He; Rong ZhongSubjectsTOBACCO smoke; COTININEPublicationAmerican Journal of Respiratory & Critical Care Medicine, 2023, Vol 207, Issue 3, p371ISSN1073-449XPublication typeLetter to the EditorDOI10.1164/rccm.202209-1805LE