EMBEDDEDIMAGEhttps://ama.dev.pubfactory.com/display/journals/ama-guides-newsl/20/1/article-p9-embeddedimages/F1.xmlFigure 1; Simple caliper that sells for $7 at Amazon.com.2024-04-08https://ama.dev.pubfactory.com/display/journals/ama-guides-newsl/20/1/article-p9-embeddedimages/F2.xmlFigure 2; The Discrim-A-Gon Baseline 2-point discriminator that is listed at Amazon.com for $490.2024-04-08