Ghana Round 4 Service Delivery Point (SQ) survey used a two-stage cluster design with urban and rural, major ecological zones as the strata. A sample of 100 enumeration areas (EAs) was drawn by the Gh
Johns Hopkins Research Data Repository2024-12-20 更新30
<p>The <i>Health Survey Northern Ireland</i>&nbsp;(HSNI) was commissioned by the Department of Health in Northern Ireland and the Central Survey Unit (CSU) of the Northern Irelan
