Changes over time can be looked at within the data
{"Image DocumentName": "Changes over time can be looked at within the data", "Image ImageDescription": "Changes over time can be looked at within the data. For example, note survival to one year, by year of enrollment: % % % % % Little difference is apparent.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}