Radiological studies as well as endoscopic procedures are unnecessary in the early management of these patients thus being relegated to recurrent or persistent bleeding. 1  Bonita F. Stanton; Kliegman, Robert; Nelson, Waldo E.; Behrman, Richard E.; Jenson, Hal B. (2007).
Geography can be either a natural or social science; if you are studying the physical structure of the Earth, such as the locations of bodies of water, mountains, rivers, deseâ¦rts, etc., that is a type of natural science, and if you are studying national borders and political divisions marked on a map, that is a type of social science.
The social sciences are groups of academic disciplines that study the human aspects of the world. They diverge from the arts and humanities in that the social sciences emphasize the use of the scientific method and rigorous standards of evidence in the study of humanity, including quantitative and qualitative methods.