/ 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.
Gastroenterologist or Hepatologist. A doctor who specializes on the liver is a hepatologist. Not to be confused with a herpatologist, who studies snakes. The answer depends on the type of problem. In our area, gastroenterologists treat most liver problems, but sometimes the treatment of hepatitis is done primarily by infectious disease specialists.