caption: 1922 -- <PERSON> established the first blood donor service
exif: {"Image DocumentName": "1922 \u2013 Percy Oliver established the first blood donor service", "Image ImageDescription": "1935 \u2013 Mayo Clinic developed a method to store blood for transfusions \u2013 Dr. Bernard Fantus established the first blood bank.", "Image XResolution": "200", "Image YResolution": "200", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}