/ 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.
A back doctor is a general term for any type of physician or alternative care provider who specializes in diagnosing and treating the conditions that are commonly thought to cause back pain.Patients are often very confused over which type of back doctor will best serve their needs and expectations.ack Doctor. A back doctor is a general term for any type of physician or alternative care provider who specializes in diagnosing and treating the conditions that are commonly thought to cause back pain. Patients are often very confused over which type of back doctor will best serve their needs and expectations.