/ 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 nephrologist is a medical doctor who specializes in kidney care and treating diseases of the kidneys.The term nephrologist comes from the Greek word ânephrosâ, which means kidney or renal and âologistâ refers to someone who studies. Dialysis â Dialysis is the process of cleaning the blood when the kidneys no longer function. 2  Kidney doctors learn about hemodialysis and peritoneal dialysis â the two types of dialysis â so they can match their patients with the dialysis treatment that works best for their health and lifestyle.