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.
Early years [edit]. Born in Bristol, Tennessee to Maud Long and Clarence Thomas Ford, Ford began his radio career as an announcer at WOPI-AM in Bristol, Tennessee. In 1939, the young bass-baritone left the station to study classical singing at the Cincinnati Conservatory of Music in Ohio.