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Apolipoprotein level

Bilirubin level, total

Bilirubin level, direct

Stool analysis for blood to screen for colon tumors

Stool analysis for blood, by peroxidase activity

Stool analysis for blood, by fecal hemoglobin determination by immunoassay

Vitamin D-3 level

Calcium level, total

Calcium level, ionized

Urine calcium level