@article{Schmidt2015,
author = {Schmidt, M. and Schmidt, S.A.J. and Sandegaard, J.L. and Ehrenstein, V. and Pedersen, L. and Sørensen, H.T.},
title= {The Danish National Patient Registry: A review of content, data quality, and research potential},
year = {2015},
doi = {10.2147/CLEP.S91125},
volume = {2015},
number = {7},
pages = {449--490},
}