Comment on

• Passive smoking and the risk of coronary heart disease--a meta-analysis of epidemiologic studies.

  He J, Vupputuri S, Allen K, Prerost MR, Hughes J, Whelton PK. He J, et al. N Engl J Med. 1999 Mar 25;340(12):920-6. doi: 10.1056/NEJM199903253401204. N Engl J Med. 1999. PMID: 10089185
• Passive smoking, coronary heart disease, and meta-analysis.

  Bailar JC 3rd. Bailar JC 3rd. N Engl J Med. 1999 Mar 25;340(12):958-9. doi: 10.1056/NEJM199903253401211. N Engl J Med. 1999. PMID: 10089192 No abstract available.