Wide variation in the way clinical services are provided to similar patients for similar visit types results in highly variable costs but similar clinical outcomes. Objective: To identify optimal ...

Special cause variation, I love to see it! That’s because I know I’m about to learn something important about my process. A ...

A microarray experiment involves several steps, including spotting complementary DNA, extracting RNA, labeling the probe, hybridizing, scanning and analyzing images. Each step introduces variability, ...