Figure 1From: Implementation by simulation; strategies for ultrasound screening for hip dysplasia in the Netherlands Experimental variable A Number of ultrasound machines. Quartiles of cost-effectiveness (CE_A to CE_D) ranging from most cost-effective (group CE_A) to least cost-effective (group CE_D). Levels used: 1. As many as necessary US machines, 2. Limited number of US machines and 3. Externally organized (no US machines purchased).Back to article page