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66. Human antibody response to a 56-kDa purified excretory/secretory product of Dirofilaria immitis. Tropical Medicine and International Health, 2000, 5(12):855–859. doi:10.1046/j.1365-3156.2000.00663.x 

65. Revisión de tema: respuesta inmune en infecciones humanas por Leishmania spp. Iatreia,  2000, 13(3):167–178 

64. Microsatellite Markers Reveal a Spectrum of Population Structures in the Malaria Parasite Plasmodium falciparum, 1467–1482. Molecular Biology and Evolution. 2000, 17(10):1467–1482  

63. Leishmania antigen nonspecific binding to avidin in biotin-avidin. Clinical and diagnostic laboratory immunology, 2000, 7(4):717–718 

62. Cytotoxicity and antileishmanial activity of Annona muricata pericarp. Fitoterapia, 71:183–186. doi:10.1016/S0367-326X(99)00138-0 

61. Leishmaniosis: aspectos clínico-epidemiológicos, diagnóstico, tratamiento y control. Medicina & Laboratorio, 2000, 9(3/4):145-165 

60. The gene encoding the metacyclogenesis-associated transcript Mat-1 is conserved in the genus Leishmania and shows a tendency to form dimers upon protein expression. Parasitology Research, 2000, 86(5):431–435. doi:10.1007/s004360050690 

59. Autosomal, mtDNA, and Y-chromosome diversity in Amerinds: Pre- and Post-Columbian patterns of gene flow in South America. American Journal of Human Genetics, 2000, 67(5):1277–1286. doi:10.1016/S0002-9297(07)62955-3 

58. Diagnosis of cutaneous leishmaniasis in Colombia: The sampling site within lesions influences the sensitivity of parasitological diagnosis. Journal of Clinical Microbiology, 2000,  38(10):3768–3773. doi:10.1128/jcm.38.10.3768-3773.2000 

57. Identificación de Lutzomyia spp. (Diptera: Psychodidae) grupo verrucarum por medio de microscopía electrónica de sus huevos. Revista Biología Tropical, 2000, 48, 615–622. 

56. Amplification and sequencing of rRNA mitochondrial DNA in leaf cutting ants (Hymenoptera: Formicidae) of Medellín Revista Colombiana de Entomología, 2000,  26(1-2):71-76 

55. Enzymatic polymorphism and phylogenetic relationships in Leishmania Ross, 1903 (Sarcomastigophora: Kinetoplastida): A case study in Colombia. Systematic Parasitology, 2000, 46(1):59–68. doi:10.1023/A:1006379309576 

54. Epidemiology of paragonimiasis in Colombia. Transactions of the Royal Society of Tropical Medicine and Hygiene, 2000, 94(6):661–663. doi:10.1016/S0035-9203(00)90223-2 

53. Safety and immunogenicity of a killed Leishmania (L.) amazonensis vaccine against cutaneous leishmaniasis in Colombia: Randomized controlled trial. Transactions of the Royal Society of Tropical Medicine and Hygiene, 2000, 94(6):698–703. doi:10.1016/S0035-9203(00)90239-6