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.
With this sudden national fame, Valens traveled to New York City in late 1958, appearing on national television. Early the next year he was included on a tour of the midwest with one of the most famous rock n' roll singers of that time -- his idol, Buddy Holly. It was during this tour that Valens' budding career abruptly ended with the plane crash in Iowa.