Metadata
Author: scielo-abstract
Data
English[en]
Methods: A representative sample of the adult population of Medellin, was obtained by means of a multi-stage, stratified, conglomerate based sampling method.
Spanish[es]
Métodos: Se tomó una muestra representativa de la población adulta de Medellín, mediante un muestreo polietápico estratificado por conglomerados.