Figure 4From: A cluster-randomized, placebo-controlled, maternal vitamin a or beta-carotene supplementation trial in bangladesh: design and methods GIS maps of the JiVitA-1 study area, illustrating successful sector-level randomization by displaying sector means of four select characteristics of enrolled women in those sectors (early pregnancy arm circumference, living standards index [14], gestational age at first dose, and dosing compliance throughout the duration of the study).Back to article page