Pernicious anemia (also called Addison's anemia) is a type of red blood cell disorder caused by impaired vitamin B12 metabolism. Vitamin B12 is primarily absorbed by the small intestine, after being bound to intrinsic factor secreted by parietal cells of gastric mucosa. When this process is disrupted by conditions like atrophic gastritis, celiac disease, small bowel resection etc, B12 deficiency ensues.<unk><unk>  leukemia (CML) may be classified according to the hematologic characteristics and laboratory findings into five subtypes<unk>  granulocytic leukaemia (CGL) (95% of all CML), juvenile CML (extremely rare),<unk>  neutrophilic leukemia (CNL) (extremely rare),<unk>  myelomonocytic leukemia (CMML), and atypical CML (aCML).
Chronic myelogenous leukemia classification
Acute myeloid leukemia classification
Acute monocytic leukemia classification
Acute lymphoblastic leukemia classification
Mast cell leukemia classification
Thrombocytopenia classification
Myelodysplastic syndrome classification
Chronic lymphocytic leukemia clinical staging