1. M. Finland, Rev. Infect. Dis., 1 (1979) 4–21.
2. J.B. Robbins, R. Austrian, C.-J. Lee, S.C. Rastogi, G. Schiffman, J. Henrichsen, P.H. Mäkelä, C.V. Broome, R.R. Facklam, R.H. Tiesjema, and J.C. Parke Jr, J. Infect. Dis., 148 (1983) 1136–1159.
3. J. Henrichsen, J. Clin. Microbiol., 33 (1995) 2759–2762.
4. M.I. El Mouzan, K. Twan-Danso, B.H. Al Awamy, G.A. Niazi, and M.T. Altorki, Trop. Geogr. Med., 40 (1988) 213–217.
5. T.D. Mastro, A. Ghafoor, N.K. Nomani, Z. Ishaq, F. Anwar, D.M. Granoff, J.S. Spika, C. Thornsberry, and R.R. Facklam, Lancet, 337 (1991) 156–159.