Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleReply.AuthorsChen, Weihong; Cheng, Man; He, Heng; Wang, Dongming; Xu, Luli; Wang, Bin; Kim, Myong HeSubjectsEXPIRATORY flow; QUATERNARY ammonium compounds; IMMUNOGLOBULIN APublicationOccupational Medicine, 2019, Vol 69, Issue 8/9, p637ISSN0962-7480Publication typeArticleDOI10.1093/occmed/kqz138