/ Design Patterns. In software engineering, creational design patterns are design patterns that deal with object creation mechanisms, trying to create objects in a manner suitable to the situation. The basic form of object creation could result in design problems or added complexity to the design.
1 Gastroenterologist-specializes in diseases of the digestive system. 2  Geriatrician (Geriatric Medicine) - general practice physician who specializes in caring for older adults. 3  Hematologist-a hematologist specializes in diseases of the blood and bone marrow. 4  Hepatologist-specializes in diseases of the liver.
Hematologist: A doctor who specializes in treating blood disorders. Source: National Institute of Health. The following list of diseases or medical conditions are some (but not all) of the medical issues that may be treated by Hematologist (medical specialist) or where a Hematologist may be involved: Anemia.