@article{articleb220cac5,
title   = {Factors associated with serum CA19-9 levels among healthy children: a cross-sectional study},
author = {Kawai, Sayo and Oba-Shinjo, Sueli M. and Ito, Lucy S. and Uno, Miyuki and Marie, Suely K. N. and Hamajima, Nobuyuki},
year = {2012},
doi = {10.1186/1472-6890-12-23},
journal   = {BMC Clinical Pathology}
}