title: Letter: biologics are effective in neutralising the detrimental effect of smoking on the natural course of Crohn's disease - authors' reply.
authors.affiliation: Leeds Gastroenterology Institute, St. James's University Hospital, Leeds, UK.|Leeds Institute of Biomedical and Clinical Sciences, University of Leeds, Leeds, UK.
authors.forename: N
authors.initials: N
authors.lastname: To
authors.affiliation: Leeds Gastroenterology Institute, St. James's University Hospital, Leeds, UK.|Leeds Institute of Biomedical and Clinical Sciences, University of Leeds, Leeds, UK.
authors.forename: D J
authors.initials: DJ
authors.lastname: Gracie
authors.affiliation: Leeds Gastroenterology Institute, St. James's University Hospital, Leeds, UK. alexf12399@yahoo.com.|Leeds Institute of Biomedical and Clinical Sciences, University of Leeds, Leeds, UK. alexf12399@yahoo.com.
authors.forename: A C
authors.initials: AC
authors.lastname: Ford
mesh_terms: D001688:Biological Products; D003424:Crohn Disease; D006801:Humans; D012907:Smoking; D000073869:Tobacco Smoking
chemical_list: D001688:Biological Products