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.
11x14 picture frame mats with title block designed for photos and prints measuring 4x6(actual mat window size 3 3/4 x 5 3/4 with 2 1/2x3/4 title block). Mat can only be used as a a vertical picture mat. White core is a standard core mat (often called acid-neutral or acid-free mat) that has a very clean, bright white core.