{{cite journal | last1=Xing | first1=J. Y. | author2=Y. J. Zhang | author3=W. Q. Jing | author4=W. L. Li | author5=Y. M. Yu | year=2019 | title=MOLECULAR CHARACTERIZATION, EXPRESSION PATTERNS AND METHYLATION ANALYSIS OF ATP-BINDING CASSETTE SUB-FAMILY G MEMBER 2 (ABCG2) IN BROILERS | journal=Journal of Animal and Plant Sciences | volume=29 | issue=1 | pages=16-24 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=AS-17-0130}}