Infection, oxford general practice series 40.
edited by L. Southgate, C. Lockie, S. Heard and M. Wood, Oxford University Press, 1997. pound27.50 (476 pages) ISBN 0 919 262092 4.
Menendez
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Unidad de Epidemiologia y Bioestadistica Hospital Clinic, Villarroel 170 08036 Barcelona, Spain.