By Villegas-García J.C.   Santillán-Alarcón S.   in Annals of Tropical Medicine and Parasitology

ISSN:1364-8594|98|5|529-532

Maney Publishing‎(2004)‎

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By Ballestero E.   Alarcón S.   García-Bernabeu A.   in Journal of Environmental Management

ISSN:0301-4797|65|4|411-429

Academic Press‎(2002)‎

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