Comment on

• The epidemiology of tuberculosis in San Francisco. A population-based study using conventional and molecular methods.

  Small PM, Hopewell PC, Singh SP, Paz A, Parsonnet J, Ruston DC, Schecter GF, Daley CL, Schoolnik GK. Small PM, et al. N Engl J Med. 1994 Jun 16;330(24):1703-9. doi: 10.1056/NEJM199406163302402. N Engl J Med. 1994. PMID: 7910661
• Transmission of tuberculosis in New York City. An analysis by DNA fingerprinting and conventional epidemiologic methods.

  Alland D, Kalkut GE, Moss AR, McAdam RA, Hahn JA, Bosworth W, Drucker E, Bloom BR. Alland D, et al. N Engl J Med. 1994 Jun 16;330(24):1710-6. doi: 10.1056/NEJM199406163302403. N Engl J Med. 1994. PMID: 7993412