@article{doi:,
author = {Loura, M. Olga and Tutor, J. Carlos},
title = {Assessment of Copper Status in Pregnant Women},
journal = {Eastern J Med},
volume = {8},
number = {2},
pages = {46-47},
year = {2003},
doi = {},
note ={doi: },

URL = {https://dx.doi.org/},
eprint = {https://dx.doi.org/}
}