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.
New Face: Lou Phillips; Playing A Legend, Inside Out. By LESLIE BENNETTS. Published: August 14, 1987. RITCHIE VALENS, the teen-age rock singer whose meteoric rise to stardom ended abruptly with his death in a plane crash in 1959, was a Mexican-American from California. Lou Diamond Phillips, who was born in the Philippines, describes his ethnic background as Filipino, Hawaiian, Chinese, Hispanic, Scotch-Irish, and Cherokee Indian.