Author: Robertson S. E. Mayans M. Vall Horsfall S. Wright P. F. Clemens J. Ivanoff B. Lambert P. H.
Publisher: Pan American Health Organization (PAHO)
ISSN: 1020-4989
Source: Revista Panamericana de Salud Pública/Pan American Journal of Public Health, Vol.4, Iss.4, 1998-10, pp. : 258-267
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Abstract