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.
Because these files are designed to hold another folder, the legal-size and letter-size hanging folders are larger than their standard counterparts. A letter-size hanging file folder measures 12 3/4 in. wide by 9 3/8 in. tall while the legal-size hanging file measures 15 3/4 in. wide by 9 3/8 in. tall. File folders used in preservation and archiving for the National Archives are also manufactured in both legal and letter sizes.