Comment on

• Depression and the dynamics of smoking. A national perspective.

  Anda RF, Williamson DF, Escobedo LG, Mast EE, Giovino GA, Remington PL. Anda RF, et al. JAMA. 1990 Sep 26;264(12):1541-5. JAMA. 1990. PMID: 2395193
• Smoking, smoking cessation, and major depression.

  Glassman AH, Helzer JE, Covey LS, Cottler LB, Stetner F, Tipp JE, Johnson J. Glassman AH, et al. JAMA. 1990 Sep 26;264(12):1546-9. JAMA. 1990. PMID: 2395194