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.
Legal paper dimensions are only to be officially found in the USA and Canada, as these are the only two countries which have not officially adopted the ISO standard paper sizes. The most commonly used sizes are known as Letter, Legal, Ledger and Tabloid. (Letter size is also known as American Quarto outside the USA).