Population of N (9x6) units-9 systematically selected
{"Image DocumentName": "Population of N (9x6) units-9 systematically selected", "Image ImageDescription": "Systematic selection: 6,12,18,24,30,36,42,48.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}