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.
Another popular design is a rectangular base mat with a âlip,â which is defined as a protrusion or extension from the edge of the mat and this portion is placed under the desk. The lip protects the floor under the desk where the chair may roll if scooted all the way in. Custom design chair mats are available as well. Chair mats are offered in a number of standard sizes, ranging from 36â x 48â up to 72â by 96â for carpeted surfaces and 60â x 96â for hard surfaces.