title: Exercise and smoking habits in patients with and without low back and leg pain.
authors.forename: W A
authors.initials: WA
authors.lastname: Nelson
mesh_terms: D001416:Back Pain / Q000209:etiology*; D006801:Humans; D007866:Leg; D010146:Pain / Q000209:etiology*; D005082:Physical Exertion; D012907:Smoking / Q000009:adverse effects*