1.
Suwannayod T. Carcinoembryonic Antigen (CEA) and CA 19-9 Levels in Patients Attended at Lerd-Sin Hospital, Bangkok. J Assoc Med Sci [internet]. 2015 Feb. 16 [cited 2026 Sep. 12];33(1):6. available from: https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60293