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buy nolvadex All patients clinical data were obtained from the medical record, such as age, gender, menopausal status, histopathological subtype, axillary nodal status, serum concentrations of calcium, alkaline phosphatase ALP, carcinoembryonic antigen CEA, cancer antigen 125 CA 125, cancer antigen 153 CA153 and cancer antigen 199 CA199 at the time of primary diagnosis