Francisco Paz-Pineda

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Liver biopsy is the recognized gold standard for liver fibrosis staging. The aspartate aminotransferase to platelet ratio index (APRI) has been proposed as a noninvasive and readily available tool for the assessment of liver fibrosis in chronic hepatitis C (CHC). This study aimed to validate, in a Mexican tertiary health care setting, the diagnostic(More)
BACKGROUND CA 19-9 is used for diagnosis of gastrointestinal neoplasia, mainly pancreatic and biliary cancer. False positive results have been described in cholestasis. OBJECTIVE To establish the clinical value of CA 19-9 in the diagnosis of pancreatic and biliary cancer in patients with and without cholestasis. METHODS Five hundred forty-eight medical(More)
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