Buscar
Mostrando ítems 1-10 de 4411
Zinc in different periods of pregnancy: A study on pregnant women of high and low socio-economic levels.
(1984-01-01)
We have measured zinc in the serum of pregnant and non-pregnant women classified in two socio economic levels, high socio-economic level pregnant and non-pregnant women attending a private office and low socio-economic ...
Variables socio-economicas relacionadas con estadisticas vitales e informacion censal sobre migraciones en America Latina
(Programa de Actividades Conjuntas ELAS-CELADE, 2014)
Canadá y México: socios idóneos dentro del TLCII. Política económica: integración y libre comercio
(Universidad Nacional Autónoma de México, Centro de Investigaciones sobre América del Norte, 2019)