In a direct Coombs' test a special antibody is added to a sample of blood. This test checks whether there are antibodies already bound to the surface of the red blood cell. If the test is positive the antibodies that are added bind to the antibodies on the surface of the cell.
The River Hull is a navigable river in the East Riding of Yorkshire in the north of England. It rises from a series of springs to the west of Driffield, and enters the Humber estuary at Kingston upon Hull.
Hull House was a settlement house in the United States that was co-founded in 1889 by Jane Addams and Ellen Gates Starr. Located in the Near West Side of Chicago, Illinois, Hull House (named for the home's first owner) opened its doors to recently arrived European immigrants. By 1911, Hull House had grown to 13 buildings.