@article{doi:10.1001/archinte.167.7.729-a,
author = {Andrès E and Federici L},
title = {Vitamin b12 deficiency in patients receiving metformin: Clinical data},
journal = {Archives of Internal Medicine},
volume = {167},
number = {7},
pages = {729},
year = {2007},
doi = {10.1001/archinte.167.7.729-a},
URL = { + http://dx.doi.org/10.1001/archinte.167.7.729-a},
eprint = {/data/Journals/INTEMED/5584/ilt0409_729_729.pdf}
}