Clinical Significance. Measurement of the levels of bilirubin is used in the diagnosis and treatment of liver, hemolytic, hematologic, and metabolic disorders, including hepatitis and gall bladder obstruction. The assessment of direct bilirubin is helpful in the differentiation of hepatic disorders.
Rhythm and Blues Music: Overview. and blues (R&B), which combines soulful singing and a strong backbeat, was the most popular music created by and for African Americans between the end of World War II (1941-45) and the early 1960s. Such Georgia artists as Ray Charles, Little Richard, and James Brown rank among the most influential and innovative R&B performers.
From Wikipedia, the free encyclopedia. The Delta blues is one of the earliest types of blues music. It started in the Mississippi Delta (a place in the US that goes from Memphis to Mississippi). Guitar and harmonica are usually used to play it. Delta blues music was first played in the 1920s.