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
American Academy of Sleep Medicine better sleep. Its stated mission is to improve sleep health and promote high quality, patient-centered care through advocacy, education, strategic research, and practice standards. Membership is open to physicians, researchers and other health care professionals who specialize in the study, diagnosis and treatment of disorders of sleep and daytime alertness, including some who are not Americans. The latest findings in sleep medicine are published in the official peer-reviewed journal of the AASM: The AASM also publishes Clinical Practice Guidelines, Position Papers and Consensus Documents for sleep medicine physicians with recommendations for the diagnosis and treatment of sleep and circadian rhythm