Chronic myeloid leukemia (CML) is a rare type of blood cancer and occurs when the bone marrow makes too many of one type of white blood cell, called myeloid cells. Almost all CML cases are caused by an abnormal chromosome called the Philadelphia chromosome.
These are new 18X24 Quality Picture Mats. The Openings are Bevel cut 12.5 x 18.5 to fit a 13X19 photo or print. These mats are cut from Quality white core mat board and are excellent for framing photos or prints.
Frame Sizes for Mat Board. If you buy a picture frame that is the exact size of your print, there will be no room for a mat and the photo will take up the entire framed space. If you'd like to offset your photo with a mat or several mat layers you'll need to look for frame sizes that are larger than your printed photo.