Most of the research has come from studies of nonsmokers who are married to a smoker, and that is backed up by further studies of workplace exposure to smoke.
Those conclusions are also backed up by further studies of workplace exposure to smoke. Most of the research has come from studies of nonsmokers who are married to a smoker.
Most of the research has come from studies of nonsmokers who are married to a smoker. Those conclusions are also backed up by further studies of workplace exposure to smoke.
Most of the research has come from studies of nonsmokers who are married to a smoker. Those conclusions are also backed up by further studies of workplace exposure to smoke.