HARAHAP, Y., MAGGADANI, B. P., SITORUS, T. R. J., MULYADI, C. A. and PURWANTO, D. J. (2019) “CLINICAL APPLICATION OF DRIED BLOOD SPOT FOR MONITORING STUDIES OF TAMOXIFEN, ENDOXIFEN, AND 4-HYDROXYTAMOXIFEN IN BREAST CANCER PATIENT USING LIQUID CHROMATOGRAPHY–TANDEM MASS SPECTROMETRY”, International Journal of Applied Pharmaceutics, 11(2), pp. 59-63. doi: 10.22159/ijap.2019v11i2.30310.