Health, environment and work in vulnerable populations: potato farmers in center county of Boyacá

by Juan M. Ospina, Fred G. Manrique, Nelly E. Ariza
Published 2008-06-01

Crecimiento poblacional y políticas públicas

by FRED G MANRIQUE ABRIL, ABEL F MARTÍNEZ MARTÍN, JUAN MANUEL OSPINA
Published 2007-01-01

PROPIEDADES PSICOMÉTRICAS DE INSTRUMENTOS UTILIZADOS PARA EVALUAR MATERIAL EDUCATIVO EN SALUD PROPIEDADES PSICOMETRICAS DE INSTRUMENTOS UTILIZADOS PARA AVALIAR MATERIAL EDUCATIVO E...

by Lina F Barrera Sánchez, Fred G Manrique Abril, Juan Manuel Ospina Díaz
Published 2011-07-01

La pandemia de gripe de 1918-1919 en Bogotá y Boyacá, 91 a&os después The influenza pandemic of 1918-1919 in Bogotá and Boyacá, 91 years later

by Fred G Manrique-Abril, Abel F Martínez-Martin, Bernardo F Meléndez, Juan M Ospina
Published 2009-09-01

Self care practices in pregnant women at risk of contracting Chagas disease in Moniquirá and Miraflores, Colombia

by Fred G. Manrique A, Juan M. Ospina D, Giomar M. Herrera A, Sandra M. Camacho, Deisy L. Saavedra
Published 2010-11-01