Yadgar Aziz Abdullah, Abdulwahid Mohammed Salih, Ari Mohammed Abdullah, Mohammed Abdalkarim Hama Ali and Ali Hattem Hussain (2023) “Correlations of cancer antigen 19-9 and Carcinoembryonic antigen with histopathological and clinical features among malignant thyroid tumors”, Journal of Population Therapeutics and Clinical Pharmacology, 30(7), pp. 56–71. doi: 10.47750/jptcp.2023.30.07.008.