American Society of Hematology disorders of the hematopoietic, hemostatic, and lymphatic systems, and disorders of the interaction between blood and the blood vessel wall. An American hematologist has trained in a subspecialty program approved by the American Board of Internal Medicine or the American Board of Pediatrics, or has acquired a comparable education in the field by alternate means, and is Board Certified (or eligible) in the subspecialty of hematology. Diagnostic expertise of a hematologist A hematologist is expert in the investigation, diagnosis, and management of disorders of the aforementioned organ systems through the use of the medical history, physical findings, specialized clinical laboratory
Dimensional models of personality disorders leading to diagnoses that are not stable over time, have poor cross-rater agreement and high comorbidity suggesting that they do not reflect distinct disorders. In contrast the dimensional approach has been shown to predict and reflect current diagnostic criteria, but also add to them. It has been argued to be especially useful in explaining comorbidity which is often high for patients diagnosed with a personality disorders. Following from these claims, the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) incorporates a combined categorical-dimensional approach to diagnosing personality disorders based on the degree to which a person