â¤0.2 mg/dL. 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.
Ritchie Valens. In an all too brief career, Ritchie Valens was the first Chicano rock and roll star, having his best remembered hit, La Bamba, just one month before his untimely death with Buddy Holly and the Big Bopper on February 3, 1959.
Ritchie played a instrumental number on his guitar that Keane liked well enough to record as is and asked Ritchie to make up some lyrics as he went along. This single, Come On, Let's Go was released locally early in the summer of 1958. Valenzuela's name was shortened to Ritchie Valens.