title: Reflections on the saga of tar content: why did we measure the wrong thing?
authors.affiliation: European Institute of Oncology, Milan, Italy. nigel@uicc.ch
authors.forename: N
authors.initials: N
authors.lastname: Gray
mesh_terms: D006801:Humans; D010947:Plants, Toxic; D012907:Smoking; D013638:Tars / Q000032:analysis*; D014026:Nicotiana
chemical_list: D013638:Tars