@article{articlee20f697a,
title   = {ELEVATED CA 19-9 IN AN ASYMPTOMATIC PATIENT: WHAT DOES IT MEAN?},
author = {Meira Júnior, José Donizeti de and Costa, Thiago Nogueira and Montagnini, Andre Luis and Nahas, Sergio Carlos and Jukemura, José},
year = {2022},
doi = {10.1590/0102-672020220002e1687},
journal   = {Abcd-arquivos brasileiros de cirurgia digestiva-brazilian archives of digestive surgery}
}