uln alkaline phosphatase involvement liver subjects limit cancer lymphoma direct alkaline phosphatase uln ast alt equal institutional days registration alk ggt gamma glutamyl transpeptidase uln alkaline phosphatase transferase lactate ldh phosphatase alkaline times upper normal limit liver unless limits phos alp alkaline phosphatase uln liver metastases bone ulrr aminotransferase ast alkaline phosphatase normal upper limit uln institutional alk limits liver alkaline phosphatase uln metastases liver bone documented present involvement patients metastasis alkaline phosphatase liver present bone absence upper limit normal