/ 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.
RN, FNP. Hematology is the study of blood and blood diseases and disorders. A specialist in this field is a hematologist. The study of blood is called hematology. It is derived from the Greek word Hema, which is blood and the Latin word ology, which means study of.N, FNP. Hematology is the study of blood and blood diseases and disorders. A specialist in this field is a hematologist. The study of blood is called hematology. It is derived from the Greek word Hema, which is blood and the Latin word ology, which means study of.